DwarfCompileUnit.cpp revision 62fdfb5fa7efdfd61339e4abe6fd87e60e939e58
1161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel//===-- llvm/CodeGen/DwarfCompileUnit.cpp - Dwarf Compile Unit ------------===// 2161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel// 3161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel// The LLVM Compiler Infrastructure 4161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel// 5161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel// This file is distributed under the University of Illinois Open Source 6161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel// License. See LICENSE.TXT for details. 7161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel// 8161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel//===----------------------------------------------------------------------===// 9161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel// 10443c9ed7688e66c55c43819a75be681574b291deEric Christopher// This file contains support for constructing a dwarf compile unit. 11161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel// 12161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel//===----------------------------------------------------------------------===// 13161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 14161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel#define DEBUG_TYPE "dwarfdebug" 15161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 16161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel#include "DwarfCompileUnit.h" 17d04a8d4b33ff316ca4cf961e06c9e312eff8e64fChandler Carruth#include "DwarfAccelTable.h" 18161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel#include "DwarfDebug.h" 19d04a8d4b33ff316ca4cf961e06c9e312eff8e64fChandler Carruth#include "llvm/ADT/APFloat.h" 2016eeb6f5ebc978b03745177b9ac82684ab1c6932Bill Wendling#include "llvm/DIBuilder.h" 210b8c9a80f20772c3793201ab5b251d3520b9cea3Chandler Carruth#include "llvm/IR/Constants.h" 220b8c9a80f20772c3793201ab5b251d3520b9cea3Chandler Carruth#include "llvm/IR/DataLayout.h" 230b8c9a80f20772c3793201ab5b251d3520b9cea3Chandler Carruth#include "llvm/IR/GlobalVariable.h" 240b8c9a80f20772c3793201ab5b251d3520b9cea3Chandler Carruth#include "llvm/IR/Instructions.h" 25d61c34ba30888c49f4f223422f30b018a41594daEric Christopher#include "llvm/Support/Debug.h" 26d04a8d4b33ff316ca4cf961e06c9e312eff8e64fChandler Carruth#include "llvm/Support/ErrorHandling.h" 276f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel#include "llvm/Target/Mangler.h" 28161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel#include "llvm/Target/TargetFrameLowering.h" 29161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel#include "llvm/Target/TargetMachine.h" 30161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel#include "llvm/Target/TargetRegisterInfo.h" 31161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 32161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelusing namespace llvm; 33161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 34161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// CompileUnit - Compile unit constructor. 35d4a05e0c2c871a0acbadfe572abbdb99158871bdEli BenderskyCompileUnit::CompileUnit(unsigned UID, unsigned L, DIE *D, AsmPrinter *A, 362e5d870b384f7cc20ba040e827d54fa473f60800Eric Christopher DwarfDebug *DW, DwarfUnits *DWU) 372e5d870b384f7cc20ba040e827d54fa473f60800Eric Christopher : UniqueID(UID), Language(L), CUDie(D), Asm(A), DD(DW), DU(DWU), 382e5d870b384f7cc20ba040e827d54fa473f60800Eric Christopher IndexTyDie(0) { 39161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIEIntegerOne = new (DIEValueAllocator) DIEInteger(1); 40161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 41161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 42161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// ~CompileUnit - Destructor for compile unit. 43161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang PatelCompileUnit::~CompileUnit() { 44161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel for (unsigned j = 0, M = DIEBlocks.size(); j < M; ++j) 45161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIEBlocks[j]->~DIEBlock(); 46161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 47161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 48161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// createDIEEntry - Creates a new DIEEntry to be a proxy for a debug 49161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// information entry. 50161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang PatelDIEEntry *CompileUnit::createDIEEntry(DIE *Entry) { 51161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIEEntry *Value = new (DIEValueAllocator) DIEEntry(Entry); 52161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return Value; 53161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 54161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 556afe478e005bf9f112b32b7ec25879475adc1915Bill Wendling/// getDefaultLowerBound - Return the default lower bound for an array. If the 56222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling/// DWARF version doesn't handle the language, return -1. 576afe478e005bf9f112b32b7ec25879475adc1915Bill Wendlingint64_t CompileUnit::getDefaultLowerBound() const { 58222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling switch (Language) { 59222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling default: 60222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling break; 61222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling 62222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling case dwarf::DW_LANG_C89: 63222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling case dwarf::DW_LANG_C99: 64222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling case dwarf::DW_LANG_C: 65222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling case dwarf::DW_LANG_C_plus_plus: 66222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling case dwarf::DW_LANG_ObjC: 67222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling case dwarf::DW_LANG_ObjC_plus_plus: 68222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling return 0; 69222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling 70222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling case dwarf::DW_LANG_Fortran77: 71222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling case dwarf::DW_LANG_Fortran90: 72222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling case dwarf::DW_LANG_Fortran95: 73222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling return 1; 74222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling 75222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling // The languages below have valid values only if the DWARF version >= 4. 76222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling case dwarf::DW_LANG_Java: 77222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling case dwarf::DW_LANG_Python: 78222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling case dwarf::DW_LANG_UPC: 79222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling case dwarf::DW_LANG_D: 80222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling if (dwarf::DWARF_VERSION >= 4) 81222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling return 0; 82222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling break; 83222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling 84222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling case dwarf::DW_LANG_Ada83: 85222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling case dwarf::DW_LANG_Ada95: 86222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling case dwarf::DW_LANG_Cobol74: 87222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling case dwarf::DW_LANG_Cobol85: 88222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling case dwarf::DW_LANG_Modula2: 89222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling case dwarf::DW_LANG_Pascal83: 90222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling case dwarf::DW_LANG_PLI: 91222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling if (dwarf::DWARF_VERSION >= 4) 92222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling return 1; 93222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling break; 94222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling } 95222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling 96222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling return -1; 97222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling} 98222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling 99873cf0a0d7906083578d9b793008348750636138Eric Christopher/// addFlag - Add a flag that is true. 100873cf0a0d7906083578d9b793008348750636138Eric Christophervoid CompileUnit::addFlag(DIE *Die, unsigned Attribute) { 101873cf0a0d7906083578d9b793008348750636138Eric Christopher if (!DD->useDarwinGDBCompat()) 102873cf0a0d7906083578d9b793008348750636138Eric Christopher Die->addValue(Attribute, dwarf::DW_FORM_flag_present, 103873cf0a0d7906083578d9b793008348750636138Eric Christopher DIEIntegerOne); 104873cf0a0d7906083578d9b793008348750636138Eric Christopher else 105873cf0a0d7906083578d9b793008348750636138Eric Christopher addUInt(Die, Attribute, dwarf::DW_FORM_flag, 1); 106873cf0a0d7906083578d9b793008348750636138Eric Christopher} 107873cf0a0d7906083578d9b793008348750636138Eric Christopher 108161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// addUInt - Add an unsigned integer attribute data and value. 109161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// 110161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelvoid CompileUnit::addUInt(DIE *Die, unsigned Attribute, 111161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel unsigned Form, uint64_t Integer) { 112161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (!Form) Form = DIEInteger::BestForm(false, Integer); 113161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIEValue *Value = Integer == 1 ? 114161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIEIntegerOne : new (DIEValueAllocator) DIEInteger(Integer); 115161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Die->addValue(Attribute, Form, Value); 116161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 117161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 118161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// addSInt - Add an signed integer attribute data and value. 119161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// 120161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelvoid CompileUnit::addSInt(DIE *Die, unsigned Attribute, 121161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel unsigned Form, int64_t Integer) { 122161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (!Form) Form = DIEInteger::BestForm(true, Integer); 123161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIEValue *Value = new (DIEValueAllocator) DIEInteger(Integer); 124161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Die->addValue(Attribute, Form, Value); 125161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 126161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1276a7efcfc02ea5370fb0da66d750165a3ffe93ab7Nick Lewycky/// addString - Add a string attribute data and value. We always emit a 1286a7efcfc02ea5370fb0da66d750165a3ffe93ab7Nick Lewycky/// reference to the string pool instead of immediate strings so that DIEs have 1296a7efcfc02ea5370fb0da66d750165a3ffe93ab7Nick Lewycky/// more predictable sizes. 130390c40d96adb2eb4a778a0890c6c8743057e289eNick Lewyckyvoid CompileUnit::addString(DIE *Die, unsigned Attribute, StringRef String) { 1312e5d870b384f7cc20ba040e827d54fa473f60800Eric Christopher MCSymbol *Symb = DU->getStringPoolEntry(String); 1326a7efcfc02ea5370fb0da66d750165a3ffe93ab7Nick Lewycky DIEValue *Value; 1336a7efcfc02ea5370fb0da66d750165a3ffe93ab7Nick Lewycky if (Asm->needsRelocationsForDwarfStringPool()) 1346a7efcfc02ea5370fb0da66d750165a3ffe93ab7Nick Lewycky Value = new (DIEValueAllocator) DIELabel(Symb); 1356a7efcfc02ea5370fb0da66d750165a3ffe93ab7Nick Lewycky else { 1362e5d870b384f7cc20ba040e827d54fa473f60800Eric Christopher MCSymbol *StringPool = DU->getStringPoolSym(); 1376a7efcfc02ea5370fb0da66d750165a3ffe93ab7Nick Lewycky Value = new (DIEValueAllocator) DIEDelta(Symb, StringPool); 138390c40d96adb2eb4a778a0890c6c8743057e289eNick Lewycky } 1396a7efcfc02ea5370fb0da66d750165a3ffe93ab7Nick Lewycky Die->addValue(Attribute, dwarf::DW_FORM_strp, Value); 140161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 141161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 142161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// addLabel - Add a Dwarf label attribute data and value. 143161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// 144161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelvoid CompileUnit::addLabel(DIE *Die, unsigned Attribute, unsigned Form, 145161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel const MCSymbol *Label) { 146161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIEValue *Value = new (DIEValueAllocator) DIELabel(Label); 147161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Die->addValue(Attribute, Form, Value); 148161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 149161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 150161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// addDelta - Add a label delta attribute data and value. 151161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// 152161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelvoid CompileUnit::addDelta(DIE *Die, unsigned Attribute, unsigned Form, 153161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel const MCSymbol *Hi, const MCSymbol *Lo) { 154161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIEValue *Value = new (DIEValueAllocator) DIEDelta(Hi, Lo); 155161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Die->addValue(Attribute, Form, Value); 156161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 157161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 158161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// addDIEEntry - Add a DIE attribute data and value. 159161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// 160161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelvoid CompileUnit::addDIEEntry(DIE *Die, unsigned Attribute, unsigned Form, 161161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIE *Entry) { 162161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Die->addValue(Attribute, Form, createDIEEntry(Entry)); 163161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 164161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 165161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// addBlock - Add block data. 166161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// 167161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelvoid CompileUnit::addBlock(DIE *Die, unsigned Attribute, unsigned Form, 168161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIEBlock *Block) { 169161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Block->ComputeSize(Asm); 170161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIEBlocks.push_back(Block); // Memoize so we can call the destructor later on. 171161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Die->addValue(Attribute, Block->BestForm(), Block); 172161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 173161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 174161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// addSourceLine - Add location information to specified debug information 175161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// entry. 176161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelvoid CompileUnit::addSourceLine(DIE *Die, DIVariable V) { 177161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Verify variable. 178161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (!V.Verify()) 179161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return; 1808b4310b8061d3d5ef26a4a313f53804a8ad02fc9Eric Christopher 181161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel unsigned Line = V.getLineNumber(); 182161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (Line == 0) 183161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return; 1847ee5f5d61f18deda7412fdff4c2729c59a436b27Eric Christopher unsigned FileID = DD->getOrCreateSourceID(V.getContext().getFilename(), 185161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel V.getContext().getDirectory()); 186161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel assert(FileID && "Invalid file id"); 187161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(Die, dwarf::DW_AT_decl_file, 0, FileID); 188161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(Die, dwarf::DW_AT_decl_line, 0, Line); 189161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 190161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 191161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// addSourceLine - Add location information to specified debug information 192161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// entry. 193161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelvoid CompileUnit::addSourceLine(DIE *Die, DIGlobalVariable G) { 194161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Verify global variable. 195161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (!G.Verify()) 196161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return; 197161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 198161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel unsigned Line = G.getLineNumber(); 199161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (Line == 0) 200161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return; 2017ee5f5d61f18deda7412fdff4c2729c59a436b27Eric Christopher unsigned FileID = DD->getOrCreateSourceID(G.getFilename(), G.getDirectory()); 202161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel assert(FileID && "Invalid file id"); 203161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(Die, dwarf::DW_AT_decl_file, 0, FileID); 204161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(Die, dwarf::DW_AT_decl_line, 0, Line); 205161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 206161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 207161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// addSourceLine - Add location information to specified debug information 208161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// entry. 209161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelvoid CompileUnit::addSourceLine(DIE *Die, DISubprogram SP) { 210161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Verify subprogram. 211161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (!SP.Verify()) 212161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return; 213161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 2142125d5a7e58eb21f34c2a21913d6f1074c63b5cdEric Christopher // If the line number is 0, don't add it. 215161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel unsigned Line = SP.getLineNumber(); 2162125d5a7e58eb21f34c2a21913d6f1074c63b5cdEric Christopher if (Line == 0) 217161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return; 2182125d5a7e58eb21f34c2a21913d6f1074c63b5cdEric Christopher 2197ee5f5d61f18deda7412fdff4c2729c59a436b27Eric Christopher unsigned FileID = DD->getOrCreateSourceID(SP.getFilename(), 220746cb670c3cd4f79b288d56d8e9f195685a5381aNick Lewycky SP.getDirectory()); 221161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel assert(FileID && "Invalid file id"); 222161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(Die, dwarf::DW_AT_decl_file, 0, FileID); 223161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(Die, dwarf::DW_AT_decl_line, 0, Line); 224161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 225161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 226161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// addSourceLine - Add location information to specified debug information 227161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// entry. 228161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelvoid CompileUnit::addSourceLine(DIE *Die, DIType Ty) { 229161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Verify type. 230161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (!Ty.Verify()) 231161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return; 232161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 233161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel unsigned Line = Ty.getLineNumber(); 2342125d5a7e58eb21f34c2a21913d6f1074c63b5cdEric Christopher if (Line == 0) 235161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return; 2367ee5f5d61f18deda7412fdff4c2729c59a436b27Eric Christopher unsigned FileID = DD->getOrCreateSourceID(Ty.getFilename(), 237746cb670c3cd4f79b288d56d8e9f195685a5381aNick Lewycky Ty.getDirectory()); 238161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel assert(FileID && "Invalid file id"); 239161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(Die, dwarf::DW_AT_decl_file, 0, FileID); 240161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(Die, dwarf::DW_AT_decl_line, 0, Line); 241161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 242161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 243161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// addSourceLine - Add location information to specified debug information 244161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// entry. 245b8ca98874316bfe8e46b27e7a034a8a764c92e08Eric Christophervoid CompileUnit::addSourceLine(DIE *Die, DIObjCProperty Ty) { 246b8ca98874316bfe8e46b27e7a034a8a764c92e08Eric Christopher // Verify type. 247b8ca98874316bfe8e46b27e7a034a8a764c92e08Eric Christopher if (!Ty.Verify()) 248b8ca98874316bfe8e46b27e7a034a8a764c92e08Eric Christopher return; 249b8ca98874316bfe8e46b27e7a034a8a764c92e08Eric Christopher 250b8ca98874316bfe8e46b27e7a034a8a764c92e08Eric Christopher unsigned Line = Ty.getLineNumber(); 251b8ca98874316bfe8e46b27e7a034a8a764c92e08Eric Christopher if (Line == 0) 252b8ca98874316bfe8e46b27e7a034a8a764c92e08Eric Christopher return; 253b8ca98874316bfe8e46b27e7a034a8a764c92e08Eric Christopher DIFile File = Ty.getFile(); 2547ee5f5d61f18deda7412fdff4c2729c59a436b27Eric Christopher unsigned FileID = DD->getOrCreateSourceID(File.getFilename(), 2554d069bf8ec726570d668e59fda993a33dfb7cb0bEric Christopher File.getDirectory()); 256b8ca98874316bfe8e46b27e7a034a8a764c92e08Eric Christopher assert(FileID && "Invalid file id"); 257b8ca98874316bfe8e46b27e7a034a8a764c92e08Eric Christopher addUInt(Die, dwarf::DW_AT_decl_file, 0, FileID); 258b8ca98874316bfe8e46b27e7a034a8a764c92e08Eric Christopher addUInt(Die, dwarf::DW_AT_decl_line, 0, Line); 259b8ca98874316bfe8e46b27e7a034a8a764c92e08Eric Christopher} 260b8ca98874316bfe8e46b27e7a034a8a764c92e08Eric Christopher 261b8ca98874316bfe8e46b27e7a034a8a764c92e08Eric Christopher/// addSourceLine - Add location information to specified debug information 262b8ca98874316bfe8e46b27e7a034a8a764c92e08Eric Christopher/// entry. 263161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelvoid CompileUnit::addSourceLine(DIE *Die, DINameSpace NS) { 264161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Verify namespace. 265161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (!NS.Verify()) 266161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return; 267161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 268161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel unsigned Line = NS.getLineNumber(); 269161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (Line == 0) 270161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return; 271161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel StringRef FN = NS.getFilename(); 272161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 2737ee5f5d61f18deda7412fdff4c2729c59a436b27Eric Christopher unsigned FileID = DD->getOrCreateSourceID(FN, NS.getDirectory()); 274161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel assert(FileID && "Invalid file id"); 275161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(Die, dwarf::DW_AT_decl_file, 0, FileID); 276161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(Die, dwarf::DW_AT_decl_line, 0, Line); 277161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 278161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 2798b4310b8061d3d5ef26a4a313f53804a8ad02fc9Eric Christopher/// addVariableAddress - Add DW_AT_location attribute for a 280e1cdf84ee5ca72a38f4dedd6b12cce21cf83e415Devang Patel/// DbgVariable based on provided MachineLocation. 2818b4310b8061d3d5ef26a4a313f53804a8ad02fc9Eric Christophervoid CompileUnit::addVariableAddress(DbgVariable *&DV, DIE *Die, 282e1cdf84ee5ca72a38f4dedd6b12cce21cf83e415Devang Patel MachineLocation Location) { 283161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (DV->variableHasComplexAddress()) 284161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addComplexAddress(DV, Die, dwarf::DW_AT_location, Location); 285161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel else if (DV->isBlockByrefVariable()) 286161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addBlockByrefAddress(DV, Die, dwarf::DW_AT_location, Location); 287161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel else 288161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addAddress(Die, dwarf::DW_AT_location, Location); 289161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 290161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 291116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel/// addRegisterOp - Add register operand. 292116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patelvoid CompileUnit::addRegisterOp(DIE *TheDie, unsigned Reg) { 293116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel const TargetRegisterInfo *RI = Asm->TM.getRegisterInfo(); 294116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel unsigned DWReg = RI->getDwarfRegNum(Reg, false); 295116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel if (DWReg < 32) 296116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel addUInt(TheDie, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_reg0 + DWReg); 297116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel else { 298116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel addUInt(TheDie, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_regx); 299116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel addUInt(TheDie, 0, dwarf::DW_FORM_udata, DWReg); 300116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel } 301116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel} 302116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel 303116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel/// addRegisterOffset - Add register offset. 304116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patelvoid CompileUnit::addRegisterOffset(DIE *TheDie, unsigned Reg, 305116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel int64_t Offset) { 306116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel const TargetRegisterInfo *RI = Asm->TM.getRegisterInfo(); 307116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel unsigned DWReg = RI->getDwarfRegNum(Reg, false); 308116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel const TargetRegisterInfo *TRI = Asm->TM.getRegisterInfo(); 309116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel if (Reg == TRI->getFrameRegister(*Asm->MF)) 310116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel // If variable offset is based in frame register then use fbreg. 311116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel addUInt(TheDie, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_fbreg); 312116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel else if (DWReg < 32) 313116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel addUInt(TheDie, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_breg0 + DWReg); 314116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel else { 315116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel addUInt(TheDie, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_bregx); 316116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel addUInt(TheDie, 0, dwarf::DW_FORM_udata, DWReg); 317116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel } 318116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel addSInt(TheDie, 0, dwarf::DW_FORM_sdata, Offset); 319116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel} 320116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel 321116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel/// addAddress - Add an address attribute to a die based on the location 322116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel/// provided. 323116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patelvoid CompileUnit::addAddress(DIE *Die, unsigned Attribute, 324116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel const MachineLocation &Location) { 325116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel DIEBlock *Block = new (DIEValueAllocator) DIEBlock(); 326116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel 327116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel if (Location.isReg()) 328116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel addRegisterOp(Block, Location.getReg()); 329116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel else 330116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel addRegisterOffset(Block, Location.getReg(), Location.getOffset()); 331116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel 332116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel // Now attach the location information to the DIE. 333116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel addBlock(Die, Attribute, 0, Block); 334116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel} 335116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel 336161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// addComplexAddress - Start with the address based on the location provided, 337161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// and generate the DWARF information necessary to find the actual variable 338161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// given the extra address information encoded in the DIVariable, starting from 339161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// the starting location. Add the DWARF information to the die. 340161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// 341161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelvoid CompileUnit::addComplexAddress(DbgVariable *&DV, DIE *Die, 342161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel unsigned Attribute, 343161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel const MachineLocation &Location) { 344161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIEBlock *Block = new (DIEValueAllocator) DIEBlock(); 345c26f5447e39b43a6dd9c1a9d88227f4adf3b5600Devang Patel unsigned N = DV->getNumAddrElements(); 346c26f5447e39b43a6dd9c1a9d88227f4adf3b5600Devang Patel unsigned i = 0; 347c26f5447e39b43a6dd9c1a9d88227f4adf3b5600Devang Patel if (Location.isReg()) { 348c26f5447e39b43a6dd9c1a9d88227f4adf3b5600Devang Patel if (N >= 2 && DV->getAddrElement(0) == DIBuilder::OpPlus) { 349c26f5447e39b43a6dd9c1a9d88227f4adf3b5600Devang Patel // If first address element is OpPlus then emit 350c26f5447e39b43a6dd9c1a9d88227f4adf3b5600Devang Patel // DW_OP_breg + Offset instead of DW_OP_reg + Offset. 351c26f5447e39b43a6dd9c1a9d88227f4adf3b5600Devang Patel addRegisterOffset(Block, Location.getReg(), DV->getAddrElement(1)); 352c26f5447e39b43a6dd9c1a9d88227f4adf3b5600Devang Patel i = 2; 353c26f5447e39b43a6dd9c1a9d88227f4adf3b5600Devang Patel } else 354c26f5447e39b43a6dd9c1a9d88227f4adf3b5600Devang Patel addRegisterOp(Block, Location.getReg()); 355c26f5447e39b43a6dd9c1a9d88227f4adf3b5600Devang Patel } 356116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel else 357116da2fbe93861bb60ffff26dce1d0e76d9ccf15Devang Patel addRegisterOffset(Block, Location.getReg(), Location.getOffset()); 358161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 359c26f5447e39b43a6dd9c1a9d88227f4adf3b5600Devang Patel for (;i < N; ++i) { 360161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel uint64_t Element = DV->getAddrElement(i); 361161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (Element == DIBuilder::OpPlus) { 362161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(Block, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_plus_uconst); 363161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(Block, 0, dwarf::DW_FORM_udata, DV->getAddrElement(++i)); 364161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } else if (Element == DIBuilder::OpDeref) { 365501207676c78fefcfc9eeeaa1e3dbe9ea857d33fEric Christopher if (!Location.isReg()) 366501207676c78fefcfc9eeeaa1e3dbe9ea857d33fEric Christopher addUInt(Block, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_deref); 367161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } else llvm_unreachable("unknown DIBuilder Opcode"); 368161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 369161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 370161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Now attach the location information to the DIE. 371161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addBlock(Die, Attribute, 0, Block); 372161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 373161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 374161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/* Byref variables, in Blocks, are declared by the programmer as "SomeType 375161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel VarName;", but the compiler creates a __Block_byref_x_VarName struct, and 376161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel gives the variable VarName either the struct, or a pointer to the struct, as 377161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel its type. This is necessary for various behind-the-scenes things the 378161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel compiler needs to do with by-reference variables in Blocks. 379161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 380161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel However, as far as the original *programmer* is concerned, the variable 381161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel should still have type 'SomeType', as originally declared. 382161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 383161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel The function getBlockByrefType dives into the __Block_byref_x_VarName 384161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel struct to find the original type of the variable, which is then assigned to 385161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel the variable's Debug Information Entry as its real type. So far, so good. 386161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel However now the debugger will expect the variable VarName to have the type 387161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel SomeType. So we need the location attribute for the variable to be an 388161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel expression that explains to the debugger how to navigate through the 389161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel pointers and struct to find the actual variable of type SomeType. 390161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 391161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel The following function does just that. We start by getting 392161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel the "normal" location for the variable. This will be the location 393161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel of either the struct __Block_byref_x_VarName or the pointer to the 394161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel struct __Block_byref_x_VarName. 395161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 396161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel The struct will look something like: 397161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 398161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel struct __Block_byref_x_VarName { 399161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel ... <various fields> 400161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel struct __Block_byref_x_VarName *forwarding; 401161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel ... <various other fields> 402161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel SomeType VarName; 403161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel ... <maybe more fields> 404161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel }; 405161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 406161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel If we are given the struct directly (as our starting point) we 407161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel need to tell the debugger to: 408161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 409161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1). Add the offset of the forwarding field. 410161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 411161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 2). Follow that pointer to get the real __Block_byref_x_VarName 412161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel struct to use (the real one may have been copied onto the heap). 413161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 414161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 3). Add the offset for the field VarName, to find the actual variable. 415161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 416161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel If we started with a pointer to the struct, then we need to 417161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel dereference that pointer first, before the other steps. 418161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Translating this into DWARF ops, we will need to append the following 419161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel to the current location description for the variable: 420161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 421161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DW_OP_deref -- optional, if we start with a pointer 422161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DW_OP_plus_uconst <forward_fld_offset> 423161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DW_OP_deref 424161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DW_OP_plus_uconst <varName_fld_offset> 425161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 426161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel That is what this function does. */ 427161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 428161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// addBlockByrefAddress - Start with the address based on the location 429161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// provided, and generate the DWARF information necessary to find the 430161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// actual Block variable (navigating the Block struct) based on the 431161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// starting location. Add the DWARF information to the die. For 432161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// more information, read large comment just above here. 433161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// 434161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelvoid CompileUnit::addBlockByrefAddress(DbgVariable *&DV, DIE *Die, 435161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel unsigned Attribute, 436161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel const MachineLocation &Location) { 437161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIType Ty = DV->getType(); 438161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIType TmpTy = Ty; 439161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel unsigned Tag = Ty.getTag(); 440161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel bool isPointer = false; 441161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 442161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel StringRef varName = DV->getName(); 443161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 444161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (Tag == dwarf::DW_TAG_pointer_type) { 445161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIDerivedType DTy = DIDerivedType(Ty); 446161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel TmpTy = DTy.getTypeDerivedFrom(); 447161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel isPointer = true; 448161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 449161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 450161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DICompositeType blockStruct = DICompositeType(TmpTy); 451161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 452161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Find the __forwarding field and the variable field in the __Block_byref 453161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // struct. 454161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIArray Fields = blockStruct.getTypeArray(); 455161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIDescriptor varField = DIDescriptor(); 456161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIDescriptor forwardingField = DIDescriptor(); 457161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 458161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel for (unsigned i = 0, N = Fields.getNumElements(); i < N; ++i) { 459161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIDescriptor Element = Fields.getElement(i); 460161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIDerivedType DT = DIDerivedType(Element); 461161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel StringRef fieldName = DT.getName(); 462161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (fieldName == "__forwarding") 463161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel forwardingField = Element; 464161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel else if (fieldName == varName) 465161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel varField = Element; 466161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 467161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 468161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Get the offsets for the forwarding field and the variable field. 469161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel unsigned forwardingFieldOffset = 470161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIDerivedType(forwardingField).getOffsetInBits() >> 3; 471161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel unsigned varFieldOffset = 472161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIDerivedType(varField).getOffsetInBits() >> 3; 473161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 474161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Decode the original location, and use that as the start of the byref 475161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // variable's location. 476161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIEBlock *Block = new (DIEValueAllocator) DIEBlock(); 477161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 478caba263c8e28474e3d6feb307af8fc4445645962Eric Christopher if (Location.isReg()) 479caba263c8e28474e3d6feb307af8fc4445645962Eric Christopher addRegisterOp(Block, Location.getReg()); 480caba263c8e28474e3d6feb307af8fc4445645962Eric Christopher else 481caba263c8e28474e3d6feb307af8fc4445645962Eric Christopher addRegisterOffset(Block, Location.getReg(), Location.getOffset()); 482161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 483161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // If we started with a pointer to the __Block_byref... struct, then 484161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // the first thing we need to do is dereference the pointer (DW_OP_deref). 485161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (isPointer) 486161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(Block, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_deref); 487161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 488161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Next add the offset for the '__forwarding' field: 489161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // DW_OP_plus_uconst ForwardingFieldOffset. Note there's no point in 490161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // adding the offset if it's 0. 491161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (forwardingFieldOffset > 0) { 492161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(Block, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_plus_uconst); 493161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(Block, 0, dwarf::DW_FORM_udata, forwardingFieldOffset); 494161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 495161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 496161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Now dereference the __forwarding field to get to the real __Block_byref 497161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // struct: DW_OP_deref. 498161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(Block, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_deref); 499161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 500161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Now that we've got the real __Block_byref... struct, add the offset 501161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // for the variable's field to get to the location of the actual variable: 502161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // DW_OP_plus_uconst varFieldOffset. Again, don't add if it's 0. 503161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (varFieldOffset > 0) { 504161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(Block, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_plus_uconst); 505161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(Block, 0, dwarf::DW_FORM_udata, varFieldOffset); 506161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 507161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 508161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Now attach the location information to the DIE. 509161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addBlock(Die, Attribute, 0, Block); 510161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 511161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 5124ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel/// isTypeSigned - Return true if the type is signed. 5134ec14b0dee433a4f134d832e326a20839b1f777eDevang Patelstatic bool isTypeSigned(DIType Ty, int *SizeInBits) { 5144ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel if (Ty.isDerivedType()) 5154ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel return isTypeSigned(DIDerivedType(Ty).getTypeDerivedFrom(), SizeInBits); 5164ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel if (Ty.isBasicType()) 5174ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel if (DIBasicType(Ty).getEncoding() == dwarf::DW_ATE_signed 5184ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel || DIBasicType(Ty).getEncoding() == dwarf::DW_ATE_signed_char) { 5194ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel *SizeInBits = Ty.getSizeInBits(); 5204ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel return true; 5214ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel } 5224ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel return false; 5234ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel} 5244ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel 525161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// addConstantValue - Add constant value entry in variable DIE. 526b58128e2b2375173aafb07905bd53014d622e4baDevang Patelbool CompileUnit::addConstantValue(DIE *Die, const MachineOperand &MO, 527b58128e2b2375173aafb07905bd53014d622e4baDevang Patel DIType Ty) { 528746cb670c3cd4f79b288d56d8e9f195685a5381aNick Lewycky assert(MO.isImm() && "Invalid machine operand!"); 529161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIEBlock *Block = new (DIEValueAllocator) DIEBlock(); 5304ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel int SizeInBits = -1; 5314ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel bool SignedConstant = isTypeSigned(Ty, &SizeInBits); 5324ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel unsigned Form = SignedConstant ? dwarf::DW_FORM_sdata : dwarf::DW_FORM_udata; 5334ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel switch (SizeInBits) { 5344ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel case 8: Form = dwarf::DW_FORM_data1; break; 5354ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel case 16: Form = dwarf::DW_FORM_data2; break; 5364ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel case 32: Form = dwarf::DW_FORM_data4; break; 5374ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel case 64: Form = dwarf::DW_FORM_data8; break; 538045c1d4e48e5e06ca05d04af340f7c487bc9975dDevang Patel default: break; 539045c1d4e48e5e06ca05d04af340f7c487bc9975dDevang Patel } 5408b4310b8061d3d5ef26a4a313f53804a8ad02fc9Eric Christopher SignedConstant ? addSInt(Block, 0, Form, MO.getImm()) 5414ec14b0dee433a4f134d832e326a20839b1f777eDevang Patel : addUInt(Block, 0, Form, MO.getImm()); 54272f0d9cdefa3086715e1e2547a9843321690b4d9Devang Patel 543161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addBlock(Die, dwarf::DW_AT_const_value, 0, Block); 544161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return true; 545161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 546161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 547161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// addConstantFPValue - Add constant value entry in variable DIE. 548161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelbool CompileUnit::addConstantFPValue(DIE *Die, const MachineOperand &MO) { 549390c40d96adb2eb4a778a0890c6c8743057e289eNick Lewycky assert (MO.isFPImm() && "Invalid machine operand!"); 550161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIEBlock *Block = new (DIEValueAllocator) DIEBlock(); 551161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel APFloat FPImm = MO.getFPImm()->getValueAPF(); 552161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 553161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Get the raw data form of the floating point. 554161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel const APInt FltVal = FPImm.bitcastToAPInt(); 555161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel const char *FltPtr = (const char*)FltVal.getRawData(); 556161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 557161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel int NumBytes = FltVal.getBitWidth() / 8; // 8 bits per byte. 5583574eca1b02600bac4e625297f4ecf745f4c4f32Micah Villmow bool LittleEndian = Asm->getDataLayout().isLittleEndian(); 559161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel int Incr = (LittleEndian ? 1 : -1); 560161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel int Start = (LittleEndian ? 0 : NumBytes - 1); 561161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel int Stop = (LittleEndian ? NumBytes : -1); 562161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 563161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Output the constant to DWARF one byte at a time. 564161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel for (; Start != Stop; Start += Incr) 565161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(Block, 0, dwarf::DW_FORM_data1, 566161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel (unsigned char)0xFF & FltPtr[Start]); 567161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 568161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addBlock(Die, dwarf::DW_AT_const_value, 0, Block); 569161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return true; 570161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 571161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 572161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// addConstantValue - Add constant value entry in variable DIE. 5738594d429e02c688d428036f8563f09572da3fbffDevang Patelbool CompileUnit::addConstantValue(DIE *Die, const ConstantInt *CI, 574161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel bool Unsigned) { 575d6a8136e66f0095c7306cad022d792a57e88ba01Devang Patel unsigned CIBitWidth = CI->getBitWidth(); 576d6a8136e66f0095c7306cad022d792a57e88ba01Devang Patel if (CIBitWidth <= 64) { 577d6a8136e66f0095c7306cad022d792a57e88ba01Devang Patel unsigned form = 0; 578d6a8136e66f0095c7306cad022d792a57e88ba01Devang Patel switch (CIBitWidth) { 579d6a8136e66f0095c7306cad022d792a57e88ba01Devang Patel case 8: form = dwarf::DW_FORM_data1; break; 580d6a8136e66f0095c7306cad022d792a57e88ba01Devang Patel case 16: form = dwarf::DW_FORM_data2; break; 581d6a8136e66f0095c7306cad022d792a57e88ba01Devang Patel case 32: form = dwarf::DW_FORM_data4; break; 582d6a8136e66f0095c7306cad022d792a57e88ba01Devang Patel case 64: form = dwarf::DW_FORM_data8; break; 5838b4310b8061d3d5ef26a4a313f53804a8ad02fc9Eric Christopher default: 584d6a8136e66f0095c7306cad022d792a57e88ba01Devang Patel form = Unsigned ? dwarf::DW_FORM_udata : dwarf::DW_FORM_sdata; 585d6a8136e66f0095c7306cad022d792a57e88ba01Devang Patel } 586161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (Unsigned) 587d6a8136e66f0095c7306cad022d792a57e88ba01Devang Patel addUInt(Die, dwarf::DW_AT_const_value, form, CI->getZExtValue()); 588161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel else 589d6a8136e66f0095c7306cad022d792a57e88ba01Devang Patel addSInt(Die, dwarf::DW_AT_const_value, form, CI->getSExtValue()); 590161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return true; 591161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 592161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 593161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIEBlock *Block = new (DIEValueAllocator) DIEBlock(); 594161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 595161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Get the raw data form of the large APInt. 596161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel const APInt Val = CI->getValue(); 597c3e48c38bf87ad081904eccf16e4ddd99c36d070NAKAMURA Takumi const uint64_t *Ptr64 = Val.getRawData(); 598161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 599161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel int NumBytes = Val.getBitWidth() / 8; // 8 bits per byte. 6003574eca1b02600bac4e625297f4ecf745f4c4f32Micah Villmow bool LittleEndian = Asm->getDataLayout().isLittleEndian(); 601161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 602161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Output the constant to DWARF one byte at a time. 603c3e48c38bf87ad081904eccf16e4ddd99c36d070NAKAMURA Takumi for (int i = 0; i < NumBytes; i++) { 604c3e48c38bf87ad081904eccf16e4ddd99c36d070NAKAMURA Takumi uint8_t c; 605c3e48c38bf87ad081904eccf16e4ddd99c36d070NAKAMURA Takumi if (LittleEndian) 606c3e48c38bf87ad081904eccf16e4ddd99c36d070NAKAMURA Takumi c = Ptr64[i / 8] >> (8 * (i & 7)); 607c3e48c38bf87ad081904eccf16e4ddd99c36d070NAKAMURA Takumi else 608c3e48c38bf87ad081904eccf16e4ddd99c36d070NAKAMURA Takumi c = Ptr64[(NumBytes - 1 - i) / 8] >> (8 * ((NumBytes - 1 - i) & 7)); 609c3e48c38bf87ad081904eccf16e4ddd99c36d070NAKAMURA Takumi addUInt(Block, 0, dwarf::DW_FORM_data1, c); 610c3e48c38bf87ad081904eccf16e4ddd99c36d070NAKAMURA Takumi } 611161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 612161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addBlock(Die, dwarf::DW_AT_const_value, 0, Block); 613161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return true; 614161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 615161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 616161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// addTemplateParams - Add template parameters in buffer. 617161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelvoid CompileUnit::addTemplateParams(DIE &Buffer, DIArray TParams) { 618161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Add template parameters. 619161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel for (unsigned i = 0, e = TParams.getNumElements(); i != e; ++i) { 620161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIDescriptor Element = TParams.getElement(i); 621161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (Element.isTemplateTypeParameter()) 622161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Buffer.addChild(getOrCreateTemplateTypeParameterDIE( 623161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DITemplateTypeParameter(Element))); 624161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel else if (Element.isTemplateValueParameter()) 625161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Buffer.addChild(getOrCreateTemplateValueParameterDIE( 626161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DITemplateValueParameter(Element))); 627161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 628161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 629746cb670c3cd4f79b288d56d8e9f195685a5381aNick Lewycky 630161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// addToContextOwner - Add Die into the list of its context owner's children. 631161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelvoid CompileUnit::addToContextOwner(DIE *Die, DIDescriptor Context) { 632161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (Context.isType()) { 633161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIE *ContextDIE = getOrCreateTypeDIE(DIType(Context)); 634161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel ContextDIE->addChild(Die); 635161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } else if (Context.isNameSpace()) { 636161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIE *ContextDIE = getOrCreateNameSpace(DINameSpace(Context)); 637161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel ContextDIE->addChild(Die); 638161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } else if (Context.isSubprogram()) { 639dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel DIE *ContextDIE = getOrCreateSubprogramDIE(DISubprogram(Context)); 640161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel ContextDIE->addChild(Die); 641161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } else if (DIE *ContextDIE = getDIE(Context)) 642161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel ContextDIE->addChild(Die); 643161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel else 644161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addDie(Die); 645161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 646161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 647161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// getOrCreateTypeDIE - Find existing DIE or create new DIE for the 648161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// given DIType. 64994c7ddb6f52a5200983fed0ce74dc602a7737879Devang PatelDIE *CompileUnit::getOrCreateTypeDIE(const MDNode *TyNode) { 65094c7ddb6f52a5200983fed0ce74dc602a7737879Devang Patel DIType Ty(TyNode); 65194c7ddb6f52a5200983fed0ce74dc602a7737879Devang Patel if (!Ty.Verify()) 65294c7ddb6f52a5200983fed0ce74dc602a7737879Devang Patel return NULL; 653161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIE *TyDIE = getDIE(Ty); 654161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (TyDIE) 655161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return TyDIE; 656161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 657161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Create new type. 658161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel TyDIE = new DIE(dwarf::DW_TAG_base_type); 659161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel insertDIE(Ty, TyDIE); 660161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (Ty.isBasicType()) 661161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel constructTypeDIE(*TyDIE, DIBasicType(Ty)); 662161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel else if (Ty.isCompositeType()) 663161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel constructTypeDIE(*TyDIE, DICompositeType(Ty)); 664161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel else { 665161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel assert(Ty.isDerivedType() && "Unknown kind of DIType"); 666161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel constructTypeDIE(*TyDIE, DIDerivedType(Ty)); 667161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 6681b3f9198ab3880be34b6252423b9e388b5cd6a5eEric Christopher // If this is a named finished type then include it in the list of types 6691b3f9198ab3880be34b6252423b9e388b5cd6a5eEric Christopher // for the accelerator tables. 670c36145f19c1e164f7d630b813e9970600d8f2976Eric Christopher if (!Ty.getName().empty() && !Ty.isForwardDecl()) { 671c36145f19c1e164f7d630b813e9970600d8f2976Eric Christopher bool IsImplementation = 0; 672c36145f19c1e164f7d630b813e9970600d8f2976Eric Christopher if (Ty.isCompositeType()) { 673c36145f19c1e164f7d630b813e9970600d8f2976Eric Christopher DICompositeType CT(Ty); 674e016789b7380b2a452f81ce15c2e382e62ede120Eric Christopher // A runtime language of 0 actually means C/C++ and that any 675e016789b7380b2a452f81ce15c2e382e62ede120Eric Christopher // non-negative value is some version of Objective-C/C++. 676c36145f19c1e164f7d630b813e9970600d8f2976Eric Christopher IsImplementation = (CT.getRunTimeLang() == 0) || 677e2dc9336d15ad3ca4f38d296d17f6682829b80b4Eric Christopher CT.isObjcClassComplete(); 678c36145f19c1e164f7d630b813e9970600d8f2976Eric Christopher } 679e016789b7380b2a452f81ce15c2e382e62ede120Eric Christopher unsigned Flags = IsImplementation ? 680e016789b7380b2a452f81ce15c2e382e62ede120Eric Christopher DwarfAccelTable::eTypeFlagClassIsImplementation : 0; 681e016789b7380b2a452f81ce15c2e382e62ede120Eric Christopher addAccelType(Ty.getName(), std::make_pair(TyDIE, Flags)); 682c36145f19c1e164f7d630b813e9970600d8f2976Eric Christopher } 6838b4310b8061d3d5ef26a4a313f53804a8ad02fc9Eric Christopher 684161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addToContextOwner(TyDIE, Ty.getContext()); 685161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return TyDIE; 686161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 687161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 688161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// addType - Add a new type attribute to the specified entity. 6894d069bf8ec726570d668e59fda993a33dfb7cb0bEric Christophervoid CompileUnit::addType(DIE *Entity, DIType Ty, unsigned Attribute) { 690161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (!Ty.Verify()) 691161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return; 692161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 693161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Check for pre-existence. 694161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIEEntry *Entry = getDIEEntry(Ty); 695161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // If it exists then use the existing value. 696161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (Entry) { 697663e0cf73dcf2bfbbfc22b49c739d54916652d1cEric Christopher Entity->addValue(Attribute, dwarf::DW_FORM_ref4, Entry); 698161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return; 699161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 700161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 701161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Construct type. 702161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIE *Buffer = getOrCreateTypeDIE(Ty); 703161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 704161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Set up proxy. 705161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Entry = createDIEEntry(Buffer); 706161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel insertDIEEntry(Ty, Entry); 707663e0cf73dcf2bfbbfc22b49c739d54916652d1cEric Christopher Entity->addValue(Attribute, dwarf::DW_FORM_ref4, Entry); 708e9ae06ca987b6c3b6cfbcd50ab85386565a4e0caDevang Patel 709e9ae06ca987b6c3b6cfbcd50ab85386565a4e0caDevang Patel // If this is a complete composite type then include it in the 710e9ae06ca987b6c3b6cfbcd50ab85386565a4e0caDevang Patel // list of global types. 711c20bdf194ad4c824ee6a5f163410d73513ae5c81Devang Patel addGlobalType(Ty); 71266658e4dff51664a53c56dd729b8abe4d57aadefDevang Patel} 71366658e4dff51664a53c56dd729b8abe4d57aadefDevang Patel 71466658e4dff51664a53c56dd729b8abe4d57aadefDevang Patel/// addGlobalType - Add a new global type to the compile unit. 71566658e4dff51664a53c56dd729b8abe4d57aadefDevang Patel/// 716c20bdf194ad4c824ee6a5f163410d73513ae5c81Devang Patelvoid CompileUnit::addGlobalType(DIType Ty) { 717e9ae06ca987b6c3b6cfbcd50ab85386565a4e0caDevang Patel DIDescriptor Context = Ty.getContext(); 7188b4310b8061d3d5ef26a4a313f53804a8ad02fc9Eric Christopher if (Ty.isCompositeType() && !Ty.getName().empty() && !Ty.isForwardDecl() 7198b4310b8061d3d5ef26a4a313f53804a8ad02fc9Eric Christopher && (!Context || Context.isCompileUnit() || Context.isFile() 72094c7ddb6f52a5200983fed0ce74dc602a7737879Devang Patel || Context.isNameSpace())) 721c20bdf194ad4c824ee6a5f163410d73513ae5c81Devang Patel if (DIEEntry *Entry = getDIEEntry(Ty)) 722c20bdf194ad4c824ee6a5f163410d73513ae5c81Devang Patel GlobalTypes[Ty.getName()] = Entry->getEntry(); 723161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 724161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 72531c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel/// addPubTypes - Add type for pubtypes section. 72631c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patelvoid CompileUnit::addPubTypes(DISubprogram SP) { 72731c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel DICompositeType SPTy = SP.getType(); 72831c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel unsigned SPTag = SPTy.getTag(); 72931c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel if (SPTag != dwarf::DW_TAG_subroutine_type) 73031c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel return; 73131c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel 73231c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel DIArray Args = SPTy.getTypeArray(); 73331c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel for (unsigned i = 0, e = Args.getNumElements(); i != e; ++i) { 73431c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel DIType ATy(Args.getElement(i)); 73531c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel if (!ATy.Verify()) 73631c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel continue; 737c20bdf194ad4c824ee6a5f163410d73513ae5c81Devang Patel addGlobalType(ATy); 73831c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel } 73931c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel} 74031c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel 741161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// constructTypeDIE - Construct basic type die from DIBasicType. 742161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelvoid CompileUnit::constructTypeDIE(DIE &Buffer, DIBasicType BTy) { 743161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Get core information. 744161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel StringRef Name = BTy.getName(); 745161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Add name if not anonymous or intermediate type. 746161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (!Name.empty()) 747390c40d96adb2eb4a778a0890c6c8743057e289eNick Lewycky addString(&Buffer, dwarf::DW_AT_name, Name); 748734a67cda5a02be1654a2f89b811d7b6cbe3f5e5Devang Patel 749734a67cda5a02be1654a2f89b811d7b6cbe3f5e5Devang Patel if (BTy.getTag() == dwarf::DW_TAG_unspecified_type) { 750734a67cda5a02be1654a2f89b811d7b6cbe3f5e5Devang Patel Buffer.setTag(dwarf::DW_TAG_unspecified_type); 751734a67cda5a02be1654a2f89b811d7b6cbe3f5e5Devang Patel // Unspecified types has only name, nothing else. 752734a67cda5a02be1654a2f89b811d7b6cbe3f5e5Devang Patel return; 753734a67cda5a02be1654a2f89b811d7b6cbe3f5e5Devang Patel } 754734a67cda5a02be1654a2f89b811d7b6cbe3f5e5Devang Patel 755734a67cda5a02be1654a2f89b811d7b6cbe3f5e5Devang Patel Buffer.setTag(dwarf::DW_TAG_base_type); 756746cb670c3cd4f79b288d56d8e9f195685a5381aNick Lewycky addUInt(&Buffer, dwarf::DW_AT_encoding, dwarf::DW_FORM_data1, 75730d409ca097e35c51964c9dac642804e5e495906Devang Patel BTy.getEncoding()); 758734a67cda5a02be1654a2f89b811d7b6cbe3f5e5Devang Patel 759161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel uint64_t Size = BTy.getSizeInBits() >> 3; 760161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(&Buffer, dwarf::DW_AT_byte_size, 0, Size); 761161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 762161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 763161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// constructTypeDIE - Construct derived type die from DIDerivedType. 764161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelvoid CompileUnit::constructTypeDIE(DIE &Buffer, DIDerivedType DTy) { 765161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Get core information. 766161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel StringRef Name = DTy.getName(); 767161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel uint64_t Size = DTy.getSizeInBits() >> 3; 768161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel unsigned Tag = DTy.getTag(); 769161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 770161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // FIXME - Workaround for templates. 771161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (Tag == dwarf::DW_TAG_inheritance) Tag = dwarf::DW_TAG_reference_type; 772161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 773161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Buffer.setTag(Tag); 774161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 775161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Map to main type, void will not have a type. 776161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIType FromTy = DTy.getTypeDerivedFrom(); 777161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addType(&Buffer, FromTy); 778161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 779161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Add name if not anonymous or intermediate type. 780161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (!Name.empty()) 781390c40d96adb2eb4a778a0890c6c8743057e289eNick Lewycky addString(&Buffer, dwarf::DW_AT_name, Name); 782161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 783161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Add size if non-zero (derived types might be zero-sized.) 78435f225aa2c04ca2420161cca812cb3eb611bde51Eric Christopher if (Size && Tag != dwarf::DW_TAG_pointer_type) 785161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(&Buffer, dwarf::DW_AT_byte_size, 0, Size); 786161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 78762fdfb5fa7efdfd61339e4abe6fd87e60e939e58David Blaikie if (Tag == dwarf::DW_TAG_ptr_to_member_type) 78862fdfb5fa7efdfd61339e4abe6fd87e60e939e58David Blaikie addDIEEntry(&Buffer, dwarf::DW_AT_containing_type, dwarf::DW_FORM_ref4, 78962fdfb5fa7efdfd61339e4abe6fd87e60e939e58David Blaikie getOrCreateTypeDIE(DTy.getClassType())); 790161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Add source line info if available and TyDesc is not a forward declaration. 791161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (!DTy.isForwardDecl()) 792161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addSourceLine(&Buffer, DTy); 793161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 794161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 795161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// constructTypeDIE - Construct type DIE from DICompositeType. 796161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelvoid CompileUnit::constructTypeDIE(DIE &Buffer, DICompositeType CTy) { 797161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Get core information. 798161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel StringRef Name = CTy.getName(); 799161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 800161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel uint64_t Size = CTy.getSizeInBits() >> 3; 801161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel unsigned Tag = CTy.getTag(); 802161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Buffer.setTag(Tag); 803161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 804161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel switch (Tag) { 805161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel case dwarf::DW_TAG_vector_type: 806161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel case dwarf::DW_TAG_array_type: 807161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel constructArrayTypeDIE(Buffer, &CTy); 808161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel break; 809161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel case dwarf::DW_TAG_enumeration_type: { 810161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIArray Elements = CTy.getTypeArray(); 811161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 812161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Add enumerators to enumeration type. 813161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel for (unsigned i = 0, N = Elements.getNumElements(); i < N; ++i) { 814161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIE *ElemDie = NULL; 815161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIDescriptor Enum(Elements.getElement(i)); 816161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (Enum.isEnumerator()) { 817161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel ElemDie = constructEnumTypeDIE(DIEnumerator(Enum)); 818161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Buffer.addChild(ElemDie); 819161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 820161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 821bb0f6eac1f2d04e485607f0726c31a84ce9b8cedEric Christopher DIType DTy = CTy.getTypeDerivedFrom(); 822bb0f6eac1f2d04e485607f0726c31a84ce9b8cedEric Christopher if (DTy.Verify()) { 823bb0f6eac1f2d04e485607f0726c31a84ce9b8cedEric Christopher addType(&Buffer, DTy); 824bb0f6eac1f2d04e485607f0726c31a84ce9b8cedEric Christopher addUInt(&Buffer, dwarf::DW_AT_enum_class, dwarf::DW_FORM_flag, 1); 825bb0f6eac1f2d04e485607f0726c31a84ce9b8cedEric Christopher } 826161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 827161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel break; 828161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel case dwarf::DW_TAG_subroutine_type: { 829161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Add return type. 830161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIArray Elements = CTy.getTypeArray(); 831161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIDescriptor RTy = Elements.getElement(0); 832161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addType(&Buffer, DIType(RTy)); 833161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 834161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel bool isPrototyped = true; 835161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Add arguments. 836161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel for (unsigned i = 1, N = Elements.getNumElements(); i < N; ++i) { 837161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIDescriptor Ty = Elements.getElement(i); 838161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (Ty.isUnspecifiedParameter()) { 839161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIE *Arg = new DIE(dwarf::DW_TAG_unspecified_parameters); 840161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Buffer.addChild(Arg); 841161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel isPrototyped = false; 842161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } else { 843161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIE *Arg = new DIE(dwarf::DW_TAG_formal_parameter); 844161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addType(Arg, DIType(Ty)); 845161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Buffer.addChild(Arg); 846161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 847161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 8488b6fe6b651064da51bb9bc63ece8bf1f2a36d66aEric Christopher // Add prototype flag if we're dealing with a C language and the 8498b6fe6b651064da51bb9bc63ece8bf1f2a36d66aEric Christopher // function has been prototyped. 8508b6fe6b651064da51bb9bc63ece8bf1f2a36d66aEric Christopher if (isPrototyped && 8514d069bf8ec726570d668e59fda993a33dfb7cb0bEric Christopher (Language == dwarf::DW_LANG_C89 || 8524d069bf8ec726570d668e59fda993a33dfb7cb0bEric Christopher Language == dwarf::DW_LANG_C99 || 8534d069bf8ec726570d668e59fda993a33dfb7cb0bEric Christopher Language == dwarf::DW_LANG_ObjC)) 854873cf0a0d7906083578d9b793008348750636138Eric Christopher addFlag(&Buffer, dwarf::DW_AT_prototyped); 855161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 856161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel break; 857161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel case dwarf::DW_TAG_structure_type: 858161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel case dwarf::DW_TAG_union_type: 859161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel case dwarf::DW_TAG_class_type: { 860161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Add elements to structure type. 861161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIArray Elements = CTy.getTypeArray(); 862161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 863161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // A forward struct declared type may not have elements available. 864161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel unsigned N = Elements.getNumElements(); 865161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (N == 0) 866161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel break; 867161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 868161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Add elements to structure type. 869161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel for (unsigned i = 0; i < N; ++i) { 870161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIDescriptor Element = Elements.getElement(i); 871161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIE *ElemDie = NULL; 872161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (Element.isSubprogram()) { 873161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DISubprogram SP(Element); 874dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel ElemDie = getOrCreateSubprogramDIE(DISubprogram(Element)); 875161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (SP.isProtected()) 87613aaca5edf538f967c16b8bdbfe293e2f9d75fc1Nick Lewycky addUInt(ElemDie, dwarf::DW_AT_accessibility, dwarf::DW_FORM_data1, 877161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel dwarf::DW_ACCESS_protected); 878161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel else if (SP.isPrivate()) 87913aaca5edf538f967c16b8bdbfe293e2f9d75fc1Nick Lewycky addUInt(ElemDie, dwarf::DW_AT_accessibility, dwarf::DW_FORM_data1, 880161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel dwarf::DW_ACCESS_private); 8818b4310b8061d3d5ef26a4a313f53804a8ad02fc9Eric Christopher else 88213aaca5edf538f967c16b8bdbfe293e2f9d75fc1Nick Lewycky addUInt(ElemDie, dwarf::DW_AT_accessibility, dwarf::DW_FORM_data1, 883161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel dwarf::DW_ACCESS_public); 884161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (SP.isExplicit()) 885873cf0a0d7906083578d9b793008348750636138Eric Christopher addFlag(ElemDie, dwarf::DW_AT_explicit); 886161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 887161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel else if (Element.isVariable()) { 888161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIVariable DV(Element); 889161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel ElemDie = new DIE(dwarf::DW_TAG_variable); 890390c40d96adb2eb4a778a0890c6c8743057e289eNick Lewycky addString(ElemDie, dwarf::DW_AT_name, DV.getName()); 891161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addType(ElemDie, DV.getType()); 892873cf0a0d7906083578d9b793008348750636138Eric Christopher addFlag(ElemDie, dwarf::DW_AT_declaration); 893873cf0a0d7906083578d9b793008348750636138Eric Christopher addFlag(ElemDie, dwarf::DW_AT_external); 894161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addSourceLine(ElemDie, DV); 895663e0cf73dcf2bfbbfc22b49c739d54916652d1cEric Christopher } else if (Element.isDerivedType()) { 8964d069bf8ec726570d668e59fda993a33dfb7cb0bEric Christopher DIDerivedType DDTy(Element); 8974d069bf8ec726570d668e59fda993a33dfb7cb0bEric Christopher if (DDTy.getTag() == dwarf::DW_TAG_friend) { 8984d069bf8ec726570d668e59fda993a33dfb7cb0bEric Christopher ElemDie = new DIE(dwarf::DW_TAG_friend); 8994d069bf8ec726570d668e59fda993a33dfb7cb0bEric Christopher addType(ElemDie, DDTy.getTypeDerivedFrom(), dwarf::DW_AT_friend); 9004d069bf8ec726570d668e59fda993a33dfb7cb0bEric Christopher } else 9014d069bf8ec726570d668e59fda993a33dfb7cb0bEric Christopher ElemDie = createMemberDIE(DIDerivedType(Element)); 902663e0cf73dcf2bfbbfc22b49c739d54916652d1cEric Christopher } else if (Element.isObjCProperty()) { 90330d409ca097e35c51964c9dac642804e5e495906Devang Patel DIObjCProperty Property(Element); 90430d409ca097e35c51964c9dac642804e5e495906Devang Patel ElemDie = new DIE(Property.getTag()); 90530d409ca097e35c51964c9dac642804e5e495906Devang Patel StringRef PropertyName = Property.getObjCPropertyName(); 90630d409ca097e35c51964c9dac642804e5e495906Devang Patel addString(ElemDie, dwarf::DW_AT_APPLE_property_name, PropertyName); 9074d069bf8ec726570d668e59fda993a33dfb7cb0bEric Christopher addType(ElemDie, Property.getType()); 9084d069bf8ec726570d668e59fda993a33dfb7cb0bEric Christopher addSourceLine(ElemDie, Property); 90930d409ca097e35c51964c9dac642804e5e495906Devang Patel StringRef GetterName = Property.getObjCPropertyGetterName(); 91030d409ca097e35c51964c9dac642804e5e495906Devang Patel if (!GetterName.empty()) 91130d409ca097e35c51964c9dac642804e5e495906Devang Patel addString(ElemDie, dwarf::DW_AT_APPLE_property_getter, GetterName); 91230d409ca097e35c51964c9dac642804e5e495906Devang Patel StringRef SetterName = Property.getObjCPropertySetterName(); 91330d409ca097e35c51964c9dac642804e5e495906Devang Patel if (!SetterName.empty()) 91430d409ca097e35c51964c9dac642804e5e495906Devang Patel addString(ElemDie, dwarf::DW_AT_APPLE_property_setter, SetterName); 91530d409ca097e35c51964c9dac642804e5e495906Devang Patel unsigned PropertyAttributes = 0; 9169e11eb1ddb2988d0a751fdcfe433bc816c83f1f2Devang Patel if (Property.isReadOnlyObjCProperty()) 9179e11eb1ddb2988d0a751fdcfe433bc816c83f1f2Devang Patel PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_readonly; 9189e11eb1ddb2988d0a751fdcfe433bc816c83f1f2Devang Patel if (Property.isReadWriteObjCProperty()) 9199e11eb1ddb2988d0a751fdcfe433bc816c83f1f2Devang Patel PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_readwrite; 9209e11eb1ddb2988d0a751fdcfe433bc816c83f1f2Devang Patel if (Property.isAssignObjCProperty()) 9219e11eb1ddb2988d0a751fdcfe433bc816c83f1f2Devang Patel PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_assign; 9229e11eb1ddb2988d0a751fdcfe433bc816c83f1f2Devang Patel if (Property.isRetainObjCProperty()) 9239e11eb1ddb2988d0a751fdcfe433bc816c83f1f2Devang Patel PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_retain; 9249e11eb1ddb2988d0a751fdcfe433bc816c83f1f2Devang Patel if (Property.isCopyObjCProperty()) 9259e11eb1ddb2988d0a751fdcfe433bc816c83f1f2Devang Patel PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_copy; 9269e11eb1ddb2988d0a751fdcfe433bc816c83f1f2Devang Patel if (Property.isNonAtomicObjCProperty()) 9279e11eb1ddb2988d0a751fdcfe433bc816c83f1f2Devang Patel PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_nonatomic; 9289e11eb1ddb2988d0a751fdcfe433bc816c83f1f2Devang Patel if (PropertyAttributes) 9298b4310b8061d3d5ef26a4a313f53804a8ad02fc9Eric Christopher addUInt(ElemDie, dwarf::DW_AT_APPLE_property_attribute, 0, 9309e11eb1ddb2988d0a751fdcfe433bc816c83f1f2Devang Patel PropertyAttributes); 9316588abf377b7381274236e651462ec83052f6013Devang Patel 93230d409ca097e35c51964c9dac642804e5e495906Devang Patel DIEEntry *Entry = getDIEEntry(Element); 93330d409ca097e35c51964c9dac642804e5e495906Devang Patel if (!Entry) { 93430d409ca097e35c51964c9dac642804e5e495906Devang Patel Entry = createDIEEntry(ElemDie); 93530d409ca097e35c51964c9dac642804e5e495906Devang Patel insertDIEEntry(Element, Entry); 93630d409ca097e35c51964c9dac642804e5e495906Devang Patel } 9379e11eb1ddb2988d0a751fdcfe433bc816c83f1f2Devang Patel } else 938161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel continue; 939161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Buffer.addChild(ElemDie); 940161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 941161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 942161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (CTy.isAppleBlockExtension()) 943873cf0a0d7906083578d9b793008348750636138Eric Christopher addFlag(&Buffer, dwarf::DW_AT_APPLE_block); 944161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 945161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DICompositeType ContainingType = CTy.getContainingType(); 946161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (DIDescriptor(ContainingType).isCompositeType()) 947161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addDIEEntry(&Buffer, dwarf::DW_AT_containing_type, dwarf::DW_FORM_ref4, 948161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel getOrCreateTypeDIE(DIType(ContainingType))); 949161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel else { 950161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIDescriptor Context = CTy.getContext(); 951161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addToContextOwner(&Buffer, Context); 952161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 953161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 954201e6cdc39d5dca4e70cdd331f6f5055b3af3534Devang Patel if (CTy.isObjcClassComplete()) 955873cf0a0d7906083578d9b793008348750636138Eric Christopher addFlag(&Buffer, dwarf::DW_AT_APPLE_objc_complete_type); 956b11f80e94b590c90d07254dfa2406cf504e09cd3Devang Patel 9571a8e8869cafa16d94afcb6f73bc3e0f2f72f70f1Eric Christopher // Add template parameters to a class, structure or union types. 9581a8e8869cafa16d94afcb6f73bc3e0f2f72f70f1Eric Christopher // FIXME: The support isn't in the metadata for this yet. 9591a8e8869cafa16d94afcb6f73bc3e0f2f72f70f1Eric Christopher if (Tag == dwarf::DW_TAG_class_type || 9601a8e8869cafa16d94afcb6f73bc3e0f2f72f70f1Eric Christopher Tag == dwarf::DW_TAG_structure_type || 9611a8e8869cafa16d94afcb6f73bc3e0f2f72f70f1Eric Christopher Tag == dwarf::DW_TAG_union_type) 962161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addTemplateParams(Buffer, CTy.getTemplateParams()); 963161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 964161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel break; 965161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 966161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel default: 967161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel break; 968161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 969161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 970161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Add name if not anonymous or intermediate type. 971161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (!Name.empty()) 972390c40d96adb2eb4a778a0890c6c8743057e289eNick Lewycky addString(&Buffer, dwarf::DW_AT_name, Name); 973161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 9744a5d839dfa07fd6a187581b00c1a09ece30d9a08Eric Christopher if (Tag == dwarf::DW_TAG_enumeration_type || 9754a5d839dfa07fd6a187581b00c1a09ece30d9a08Eric Christopher Tag == dwarf::DW_TAG_class_type || 9764a5d839dfa07fd6a187581b00c1a09ece30d9a08Eric Christopher Tag == dwarf::DW_TAG_structure_type || 9774a5d839dfa07fd6a187581b00c1a09ece30d9a08Eric Christopher Tag == dwarf::DW_TAG_union_type) { 978161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Add size if non-zero (derived types might be zero-sized.) 979fc4199bf4add3422ce6470ca47bbe6bff2d70ea5Eric Christopher // TODO: Do we care about size for enum forward declarations? 980161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (Size) 981161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(&Buffer, dwarf::DW_AT_byte_size, 0, Size); 982fc4199bf4add3422ce6470ca47bbe6bff2d70ea5Eric Christopher else if (!CTy.isForwardDecl()) 983161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Add zero size if it is not a forward declaration. 984fc4199bf4add3422ce6470ca47bbe6bff2d70ea5Eric Christopher addUInt(&Buffer, dwarf::DW_AT_byte_size, 0, 0); 985fc4199bf4add3422ce6470ca47bbe6bff2d70ea5Eric Christopher 986fc4199bf4add3422ce6470ca47bbe6bff2d70ea5Eric Christopher // If we're a forward decl, say so. 987fc4199bf4add3422ce6470ca47bbe6bff2d70ea5Eric Christopher if (CTy.isForwardDecl()) 988873cf0a0d7906083578d9b793008348750636138Eric Christopher addFlag(&Buffer, dwarf::DW_AT_declaration); 989161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 990161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Add source line info if available. 991161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (!CTy.isForwardDecl()) 992161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addSourceLine(&Buffer, CTy); 9938938895a8338e6084eb12a2bb4bf044928436173Eric Christopher 9948938895a8338e6084eb12a2bb4bf044928436173Eric Christopher // No harm in adding the runtime language to the declaration. 9958938895a8338e6084eb12a2bb4bf044928436173Eric Christopher unsigned RLang = CTy.getRunTimeLang(); 9968938895a8338e6084eb12a2bb4bf044928436173Eric Christopher if (RLang) 9978938895a8338e6084eb12a2bb4bf044928436173Eric Christopher addUInt(&Buffer, dwarf::DW_AT_APPLE_runtime_class, 9988938895a8338e6084eb12a2bb4bf044928436173Eric Christopher dwarf::DW_FORM_data1, RLang); 999161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 1000161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 1001161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 10028b4310b8061d3d5ef26a4a313f53804a8ad02fc9Eric Christopher/// getOrCreateTemplateTypeParameterDIE - Find existing DIE or create new DIE 1003161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// for the given DITemplateTypeParameter. 1004161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang PatelDIE * 1005161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang PatelCompileUnit::getOrCreateTemplateTypeParameterDIE(DITemplateTypeParameter TP) { 1006161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIE *ParamDIE = getDIE(TP); 1007161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (ParamDIE) 1008161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return ParamDIE; 1009161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1010161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel ParamDIE = new DIE(dwarf::DW_TAG_template_type_parameter); 1011161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addType(ParamDIE, TP.getType()); 1012390c40d96adb2eb4a778a0890c6c8743057e289eNick Lewycky addString(ParamDIE, dwarf::DW_AT_name, TP.getName()); 1013161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return ParamDIE; 1014161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 1015161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 10168b4310b8061d3d5ef26a4a313f53804a8ad02fc9Eric Christopher/// getOrCreateTemplateValueParameterDIE - Find existing DIE or create new DIE 1017161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// for the given DITemplateValueParameter. 1018161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang PatelDIE * 10194d069bf8ec726570d668e59fda993a33dfb7cb0bEric ChristopherCompileUnit::getOrCreateTemplateValueParameterDIE(DITemplateValueParameter TPV){ 1020161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIE *ParamDIE = getDIE(TPV); 1021161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (ParamDIE) 1022161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return ParamDIE; 1023161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1024161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel ParamDIE = new DIE(dwarf::DW_TAG_template_value_parameter); 1025161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addType(ParamDIE, TPV.getType()); 1026161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (!TPV.getName().empty()) 1027390c40d96adb2eb4a778a0890c6c8743057e289eNick Lewycky addString(ParamDIE, dwarf::DW_AT_name, TPV.getName()); 10288b4310b8061d3d5ef26a4a313f53804a8ad02fc9Eric Christopher addUInt(ParamDIE, dwarf::DW_AT_const_value, dwarf::DW_FORM_udata, 1029161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel TPV.getValue()); 1030161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return ParamDIE; 1031161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 1032161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 103331c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel/// getOrCreateNameSpace - Create a DIE for DINameSpace. 103431c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang PatelDIE *CompileUnit::getOrCreateNameSpace(DINameSpace NS) { 103531c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel DIE *NDie = getDIE(NS); 103631c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel if (NDie) 103731c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel return NDie; 103831c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel NDie = new DIE(dwarf::DW_TAG_namespace); 103931c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel insertDIE(NS, NDie); 104009ac3d841367d5d56328eade506c951e0dc3a72dEric Christopher if (!NS.getName().empty()) { 1041390c40d96adb2eb4a778a0890c6c8743057e289eNick Lewycky addString(NDie, dwarf::DW_AT_name, NS.getName()); 104209ac3d841367d5d56328eade506c951e0dc3a72dEric Christopher addAccelNamespace(NS.getName(), NDie); 104309ac3d841367d5d56328eade506c951e0dc3a72dEric Christopher } else 104409ac3d841367d5d56328eade506c951e0dc3a72dEric Christopher addAccelNamespace("(anonymous namespace)", NDie); 104531c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel addSourceLine(NDie, NS); 104631c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel addToContextOwner(NDie, NS.getContext()); 104731c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel return NDie; 104831c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel} 104931c5d05a26b5b9eec88558d34e9c20d12e0d53d7Devang Patel 1050dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel/// getRealLinkageName - If special LLVM prefix that is used to inform the asm 1051dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel/// printer to not emit usual symbol prefix before the symbol name is used then 1052dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel/// return linkage name after skipping this special LLVM prefix. 1053dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patelstatic StringRef getRealLinkageName(StringRef LinkageName) { 1054dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel char One = '\1'; 1055dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel if (LinkageName.startswith(StringRef(&One, 1))) 1056dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel return LinkageName.substr(1); 1057dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel return LinkageName; 1058dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel} 1059dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel 1060dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel/// getOrCreateSubprogramDIE - Create new DIE using SP. 1061dbc64af76d769596903485668a1dfc2d6640c4fbDevang PatelDIE *CompileUnit::getOrCreateSubprogramDIE(DISubprogram SP) { 1062dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel DIE *SPDie = getDIE(SP); 1063dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel if (SPDie) 1064dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel return SPDie; 1065dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel 106627302f07393d4db22e8ad06ac2ad4e7f01370b17Peter Collingbourne SPDie = new DIE(dwarf::DW_TAG_subprogram); 106727302f07393d4db22e8ad06ac2ad4e7f01370b17Peter Collingbourne 106827302f07393d4db22e8ad06ac2ad4e7f01370b17Peter Collingbourne // DW_TAG_inlined_subroutine may refer to this DIE. 106927302f07393d4db22e8ad06ac2ad4e7f01370b17Peter Collingbourne insertDIE(SP, SPDie); 107027302f07393d4db22e8ad06ac2ad4e7f01370b17Peter Collingbourne 107101b55b4a808d04cbff7b62f55eaeb62019340bc0Rafael Espindola DISubprogram SPDecl = SP.getFunctionDeclaration(); 107201b55b4a808d04cbff7b62f55eaeb62019340bc0Rafael Espindola DIE *DeclDie = NULL; 107301b55b4a808d04cbff7b62f55eaeb62019340bc0Rafael Espindola if (SPDecl.isSubprogram()) { 107401b55b4a808d04cbff7b62f55eaeb62019340bc0Rafael Espindola DeclDie = getOrCreateSubprogramDIE(SPDecl); 107501b55b4a808d04cbff7b62f55eaeb62019340bc0Rafael Espindola } 107601b55b4a808d04cbff7b62f55eaeb62019340bc0Rafael Espindola 1077dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel // Add to context owner. 1078dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel addToContextOwner(SPDie, SP.getContext()); 1079dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel 1080dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel // Add function template parameters. 1081dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel addTemplateParams(*SPDie, SP.getTemplateParams()); 1082dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel 1083e9722e1e8ba43bff2dc8ee3ae948e31f3fb0e370Eric Christopher // Unfortunately this code needs to stay here instead of below the 1084e9722e1e8ba43bff2dc8ee3ae948e31f3fb0e370Eric Christopher // AT_specification code in order to work around a bug in older 1085e9722e1e8ba43bff2dc8ee3ae948e31f3fb0e370Eric Christopher // gdbs that requires the linkage name to resolve multiple template 1086e9722e1e8ba43bff2dc8ee3ae948e31f3fb0e370Eric Christopher // functions. 1087cbbd5b1d86e0d06c804f4cdd61e0676b2d2f5c85Eric Christopher // TODO: Remove this set of code when we get rid of the old gdb 1088cbbd5b1d86e0d06c804f4cdd61e0676b2d2f5c85Eric Christopher // compatibility. 10898d101c31d293bcb8ece8fecdb3325cd0728bed08Eric Christopher StringRef LinkageName = SP.getLinkageName(); 1090cbbd5b1d86e0d06c804f4cdd61e0676b2d2f5c85Eric Christopher if (!LinkageName.empty() && DD->useDarwinGDBCompat()) 10918d101c31d293bcb8ece8fecdb3325cd0728bed08Eric Christopher addString(SPDie, dwarf::DW_AT_MIPS_linkage_name, 10928d101c31d293bcb8ece8fecdb3325cd0728bed08Eric Christopher getRealLinkageName(LinkageName)); 10938d101c31d293bcb8ece8fecdb3325cd0728bed08Eric Christopher 1094dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel // If this DIE is going to refer declaration info using AT_specification 1095dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel // then there is no need to add other attributes. 109601b55b4a808d04cbff7b62f55eaeb62019340bc0Rafael Espindola if (DeclDie) { 109701b55b4a808d04cbff7b62f55eaeb62019340bc0Rafael Espindola // Refer function declaration directly. 109801b55b4a808d04cbff7b62f55eaeb62019340bc0Rafael Espindola addDIEEntry(SPDie, dwarf::DW_AT_specification, dwarf::DW_FORM_ref4, 109901b55b4a808d04cbff7b62f55eaeb62019340bc0Rafael Espindola DeclDie); 110001b55b4a808d04cbff7b62f55eaeb62019340bc0Rafael Espindola 1101dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel return SPDie; 110201b55b4a808d04cbff7b62f55eaeb62019340bc0Rafael Espindola } 1103dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel 1104cbbd5b1d86e0d06c804f4cdd61e0676b2d2f5c85Eric Christopher // Add the linkage name if we have one. 1105cbbd5b1d86e0d06c804f4cdd61e0676b2d2f5c85Eric Christopher if (!LinkageName.empty() && !DD->useDarwinGDBCompat()) 1106cbbd5b1d86e0d06c804f4cdd61e0676b2d2f5c85Eric Christopher addString(SPDie, dwarf::DW_AT_MIPS_linkage_name, 1107cbbd5b1d86e0d06c804f4cdd61e0676b2d2f5c85Eric Christopher getRealLinkageName(LinkageName)); 1108cbbd5b1d86e0d06c804f4cdd61e0676b2d2f5c85Eric Christopher 1109dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel // Constructors and operators for anonymous aggregates do not have names. 1110dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel if (!SP.getName().empty()) 1111390c40d96adb2eb4a778a0890c6c8743057e289eNick Lewycky addString(SPDie, dwarf::DW_AT_name, SP.getName()); 1112dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel 1113dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel addSourceLine(SPDie, SP); 1114dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel 11158b6fe6b651064da51bb9bc63ece8bf1f2a36d66aEric Christopher // Add the prototype if we have a prototype and we have a C like 11168b6fe6b651064da51bb9bc63ece8bf1f2a36d66aEric Christopher // language. 11178b6fe6b651064da51bb9bc63ece8bf1f2a36d66aEric Christopher if (SP.isPrototyped() && 11188b6fe6b651064da51bb9bc63ece8bf1f2a36d66aEric Christopher (Language == dwarf::DW_LANG_C89 || 11198b6fe6b651064da51bb9bc63ece8bf1f2a36d66aEric Christopher Language == dwarf::DW_LANG_C99 || 11208b6fe6b651064da51bb9bc63ece8bf1f2a36d66aEric Christopher Language == dwarf::DW_LANG_ObjC)) 1121873cf0a0d7906083578d9b793008348750636138Eric Christopher addFlag(SPDie, dwarf::DW_AT_prototyped); 1122dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel 1123dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel // Add Return Type. 1124dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel DICompositeType SPTy = SP.getType(); 1125dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel DIArray Args = SPTy.getTypeArray(); 1126dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel unsigned SPTag = SPTy.getTag(); 1127dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel 1128dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel if (Args.getNumElements() == 0 || SPTag != dwarf::DW_TAG_subroutine_type) 1129dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel addType(SPDie, SPTy); 1130dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel else 1131dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel addType(SPDie, DIType(Args.getElement(0))); 1132dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel 1133dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel unsigned VK = SP.getVirtuality(); 1134dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel if (VK) { 1135798313d6c1f48634f0964d82c6b31364058a280fNick Lewycky addUInt(SPDie, dwarf::DW_AT_virtuality, dwarf::DW_FORM_data1, VK); 1136dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel DIEBlock *Block = getDIEBlock(); 1137dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel addUInt(Block, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_constu); 1138dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel addUInt(Block, 0, dwarf::DW_FORM_udata, SP.getVirtualIndex()); 1139dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel addBlock(SPDie, dwarf::DW_AT_vtable_elem_location, 0, Block); 1140dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel ContainingTypeMap.insert(std::make_pair(SPDie, 1141dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel SP.getContainingType())); 1142dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel } 1143dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel 1144dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel if (!SP.isDefinition()) { 1145873cf0a0d7906083578d9b793008348750636138Eric Christopher addFlag(SPDie, dwarf::DW_AT_declaration); 11468b4310b8061d3d5ef26a4a313f53804a8ad02fc9Eric Christopher 1147dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel // Add arguments. Do not add arguments for subprogram definition. They will 1148dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel // be handled while processing variables. 1149dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel DICompositeType SPTy = SP.getType(); 1150dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel DIArray Args = SPTy.getTypeArray(); 1151dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel unsigned SPTag = SPTy.getTag(); 1152dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel 1153dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel if (SPTag == dwarf::DW_TAG_subroutine_type) 1154dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel for (unsigned i = 1, N = Args.getNumElements(); i < N; ++i) { 1155dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel DIE *Arg = new DIE(dwarf::DW_TAG_formal_parameter); 11565c38de99f104daaf1624b28def2c8375a702466dEric Christopher DIType ATy = DIType(Args.getElement(i)); 1157dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel addType(Arg, ATy); 1158dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel if (ATy.isArtificial()) 1159873cf0a0d7906083578d9b793008348750636138Eric Christopher addFlag(Arg, dwarf::DW_AT_artificial); 1160dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel SPDie->addChild(Arg); 1161dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel } 1162dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel } 1163dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel 1164dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel if (SP.isArtificial()) 1165873cf0a0d7906083578d9b793008348750636138Eric Christopher addFlag(SPDie, dwarf::DW_AT_artificial); 1166dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel 1167dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel if (!SP.isLocalToUnit()) 1168873cf0a0d7906083578d9b793008348750636138Eric Christopher addFlag(SPDie, dwarf::DW_AT_external); 1169dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel 1170dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel if (SP.isOptimized()) 1171873cf0a0d7906083578d9b793008348750636138Eric Christopher addFlag(SPDie, dwarf::DW_AT_APPLE_optimized); 1172dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel 1173dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel if (unsigned isa = Asm->getISAEncoding()) { 1174dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel addUInt(SPDie, dwarf::DW_AT_APPLE_isa, dwarf::DW_FORM_flag, isa); 1175dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel } 1176dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel 1177dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel return SPDie; 1178dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel} 1179dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel 11806f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel// Return const expression if value is a GEP to access merged global 11816f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel// constant. e.g. 11826f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel// i8* getelementptr ({ i8, i8, i8, i8 }* @_MergedGlobals, i32 0, i32 0) 11836f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patelstatic const ConstantExpr *getMergedGlobalExpr(const Value *V) { 11846f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel const ConstantExpr *CE = dyn_cast_or_null<ConstantExpr>(V); 11856f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel if (!CE || CE->getNumOperands() != 3 || 11866f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel CE->getOpcode() != Instruction::GetElementPtr) 11876f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel return NULL; 11886f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel 11896f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel // First operand points to a global struct. 11906f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel Value *Ptr = CE->getOperand(0); 11916f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel if (!isa<GlobalValue>(Ptr) || 11926f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel !isa<StructType>(cast<PointerType>(Ptr->getType())->getElementType())) 11936f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel return NULL; 11946f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel 11956f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel // Second operand is zero. 11966f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel const ConstantInt *CI = dyn_cast_or_null<ConstantInt>(CE->getOperand(1)); 11976f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel if (!CI || !CI->isZero()) 11986f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel return NULL; 11996f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel 12006f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel // Third operand is offset. 12016f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel if (!isa<ConstantInt>(CE->getOperand(2))) 12026f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel return NULL; 12036f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel 12046f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel return CE; 12056f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel} 12066f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel 12076f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel/// createGlobalVariableDIE - create global variable DIE. 12086f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patelvoid CompileUnit::createGlobalVariableDIE(const MDNode *N) { 12096f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel // Check for pre-existence. 121049e2f03849064d9dc26db3865ae419f17daadca6Devang Patel if (getDIE(N)) 12116f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel return; 12126f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel 121349e2f03849064d9dc26db3865ae419f17daadca6Devang Patel DIGlobalVariable GV(N); 121428bea08e531452992ff1e25e8584883dfbd4c232Devang Patel if (!GV.Verify()) 121528bea08e531452992ff1e25e8584883dfbd4c232Devang Patel return; 121628bea08e531452992ff1e25e8584883dfbd4c232Devang Patel 12176f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel DIE *VariableDIE = new DIE(GV.getTag()); 121849e2f03849064d9dc26db3865ae419f17daadca6Devang Patel // Add to map. 121949e2f03849064d9dc26db3865ae419f17daadca6Devang Patel insertDIE(N, VariableDIE); 12206f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel 12216f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel // Add name. 1222390c40d96adb2eb4a778a0890c6c8743057e289eNick Lewycky addString(VariableDIE, dwarf::DW_AT_name, GV.getDisplayName()); 12236f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel StringRef LinkageName = GV.getLinkageName(); 122449e2f03849064d9dc26db3865ae419f17daadca6Devang Patel bool isGlobalVariable = GV.getGlobal() != NULL; 12256f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel if (!LinkageName.empty() && isGlobalVariable) 1226746cb670c3cd4f79b288d56d8e9f195685a5381aNick Lewycky addString(VariableDIE, dwarf::DW_AT_MIPS_linkage_name, 1227390c40d96adb2eb4a778a0890c6c8743057e289eNick Lewycky getRealLinkageName(LinkageName)); 12286f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel // Add type. 122949e2f03849064d9dc26db3865ae419f17daadca6Devang Patel DIType GTy = GV.getType(); 12306f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel addType(VariableDIE, GTy); 12316f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel 12326f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel // Add scoping info. 1233dfa30e1ab243990eda4732a6dffb91e965e7a755Eric Christopher if (!GV.isLocalToUnit()) 1234873cf0a0d7906083578d9b793008348750636138Eric Christopher addFlag(VariableDIE, dwarf::DW_AT_external); 1235dfa30e1ab243990eda4732a6dffb91e965e7a755Eric Christopher 12366f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel // Add line number info. 12376f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel addSourceLine(VariableDIE, GV); 12386f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel // Add to context owner. 12396f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel DIDescriptor GVContext = GV.getContext(); 12406f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel addToContextOwner(VariableDIE, GVContext); 12416f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel // Add location. 124209ac3d841367d5d56328eade506c951e0dc3a72dEric Christopher bool addToAccelTable = false; 1243d61c34ba30888c49f4f223422f30b018a41594daEric Christopher DIE *VariableSpecDIE = NULL; 12446f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel if (isGlobalVariable) { 124509ac3d841367d5d56328eade506c951e0dc3a72dEric Christopher addToAccelTable = true; 12466f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel DIEBlock *Block = new (DIEValueAllocator) DIEBlock(); 12476f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel addUInt(Block, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_addr); 12486f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel addLabel(Block, 0, dwarf::DW_FORM_udata, 12496f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel Asm->Mang->getSymbol(GV.getGlobal())); 12506f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel // Do not create specification DIE if context is either compile unit 12516f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel // or a subprogram. 12521dd4e56d5565d59e9d40ad9e088a05e06f4b70f8Devang Patel if (GVContext && GV.isDefinition() && !GVContext.isCompileUnit() && 12536f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel !GVContext.isFile() && !isSubprogramContext(GVContext)) { 12546f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel // Create specification DIE. 1255d117fbb2311f6b05770ee680135eaac4eb6d16d1Eric Christopher VariableSpecDIE = new DIE(dwarf::DW_TAG_variable); 12566f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel addDIEEntry(VariableSpecDIE, dwarf::DW_AT_specification, 12576f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel dwarf::DW_FORM_ref4, VariableDIE); 12586f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel addBlock(VariableSpecDIE, dwarf::DW_AT_location, 0, Block); 1259873cf0a0d7906083578d9b793008348750636138Eric Christopher addFlag(VariableDIE, dwarf::DW_AT_declaration); 12606f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel addDie(VariableSpecDIE); 12616f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel } else { 12626f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel addBlock(VariableDIE, dwarf::DW_AT_location, 0, Block); 126309ac3d841367d5d56328eade506c951e0dc3a72dEric Christopher } 12648b4310b8061d3d5ef26a4a313f53804a8ad02fc9Eric Christopher } else if (const ConstantInt *CI = 12656f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel dyn_cast_or_null<ConstantInt>(GV.getConstant())) 12666f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel addConstantValue(VariableDIE, CI, GTy.isUnsignedDIType()); 12676f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel else if (const ConstantExpr *CE = getMergedGlobalExpr(N->getOperand(11))) { 126809ac3d841367d5d56328eade506c951e0dc3a72dEric Christopher addToAccelTable = true; 12696f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel // GV is a merged global. 12706f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel DIEBlock *Block = new (DIEValueAllocator) DIEBlock(); 12716f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel Value *Ptr = CE->getOperand(0); 12726f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel addUInt(Block, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_addr); 12736f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel addLabel(Block, 0, dwarf::DW_FORM_udata, 12746f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel Asm->Mang->getSymbol(cast<GlobalValue>(Ptr))); 12756f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel addUInt(Block, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_constu); 12766f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel SmallVector<Value*, 3> Idx(CE->op_begin()+1, CE->op_end()); 12778b4310b8061d3d5ef26a4a313f53804a8ad02fc9Eric Christopher addUInt(Block, 0, dwarf::DW_FORM_udata, 12783574eca1b02600bac4e625297f4ecf745f4c4f32Micah Villmow Asm->getDataLayout().getIndexedOffset(Ptr->getType(), Idx)); 12796f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel addUInt(Block, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_plus); 12806f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel addBlock(VariableDIE, dwarf::DW_AT_location, 0, Block); 12816f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel } 12826f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel 1283d117fbb2311f6b05770ee680135eaac4eb6d16d1Eric Christopher if (addToAccelTable) { 1284d117fbb2311f6b05770ee680135eaac4eb6d16d1Eric Christopher DIE *AddrDIE = VariableSpecDIE ? VariableSpecDIE : VariableDIE; 1285d117fbb2311f6b05770ee680135eaac4eb6d16d1Eric Christopher addAccelName(GV.getName(), AddrDIE); 128609ac3d841367d5d56328eade506c951e0dc3a72dEric Christopher 1287d117fbb2311f6b05770ee680135eaac4eb6d16d1Eric Christopher // If the linkage name is different than the name, go ahead and output 1288d117fbb2311f6b05770ee680135eaac4eb6d16d1Eric Christopher // that as well into the name table. 1289d117fbb2311f6b05770ee680135eaac4eb6d16d1Eric Christopher if (GV.getLinkageName() != "" && GV.getName() != GV.getLinkageName()) 1290d117fbb2311f6b05770ee680135eaac4eb6d16d1Eric Christopher addAccelName(GV.getLinkageName(), AddrDIE); 1291d117fbb2311f6b05770ee680135eaac4eb6d16d1Eric Christopher } 129274d8a87f40dd89ec263071c0af4d77104b166f4aEric Christopher 12936f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel return; 12946f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel} 12956f9d8ffe5e47e3d11176298e849cc8545c2169a2Devang Patel 1296161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// constructSubrangeDIE - Construct subrange DIE from DISubrange. 12974d069bf8ec726570d668e59fda993a33dfb7cb0bEric Christophervoid CompileUnit::constructSubrangeDIE(DIE &Buffer, DISubrange SR, 12984d069bf8ec726570d668e59fda993a33dfb7cb0bEric Christopher DIE *IndexTy) { 1299161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIE *DW_Subrange = new DIE(dwarf::DW_TAG_subrange_type); 1300161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addDIEEntry(DW_Subrange, dwarf::DW_AT_type, dwarf::DW_FORM_ref4, IndexTy); 13019493dae613847b01b79914502f337814fe3e00acBill Wendling 1302222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling // The LowerBound value defines the lower bounds which is typically zero for 1303222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling // C/C++. The Count value is the number of elements. Values are 64 bit. If 1304222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling // Count == -1 then the array is unbounded and we do not emit 1305222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling // DW_AT_lower_bound and DW_AT_upper_bound attributes. If LowerBound == 0 and 1306222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling // Count == 0, then the array has zero elements in which case we do not emit 1307222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling // an upper bound. 1308222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling int64_t LowerBound = SR.getLo(); 13096afe478e005bf9f112b32b7ec25879475adc1915Bill Wendling int64_t DefaultLowerBound = getDefaultLowerBound(); 1310a7645a3c66668da5e2bc772a8e5ab03dc301610cBill Wendling int64_t Count = SR.getCount(); 1311161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 13126afe478e005bf9f112b32b7ec25879475adc1915Bill Wendling if (DefaultLowerBound == -1 || LowerBound != DefaultLowerBound) 1313222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling addUInt(DW_Subrange, dwarf::DW_AT_lower_bound, 0, LowerBound); 1314222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling 1315222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling if (Count != -1 && Count != 0) 13169493dae613847b01b79914502f337814fe3e00acBill Wendling // FIXME: An unbounded array should reference the expression that defines 13179493dae613847b01b79914502f337814fe3e00acBill Wendling // the array. 1318222c2fd60d0cbe676f3f316a4d62a75762a83c40Bill Wendling addUInt(DW_Subrange, dwarf::DW_AT_upper_bound, 0, LowerBound + Count - 1); 13199493dae613847b01b79914502f337814fe3e00acBill Wendling 1320161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Buffer.addChild(DW_Subrange); 1321161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 1322161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1323161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// constructArrayTypeDIE - Construct array type DIE from DICompositeType. 1324161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patelvoid CompileUnit::constructArrayTypeDIE(DIE &Buffer, 1325161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DICompositeType *CTy) { 1326161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Buffer.setTag(dwarf::DW_TAG_array_type); 1327161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (CTy->getTag() == dwarf::DW_TAG_vector_type) 1328873cf0a0d7906083578d9b793008348750636138Eric Christopher addFlag(&Buffer, dwarf::DW_AT_GNU_vector); 1329161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1330161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Emit derived type. 1331161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addType(&Buffer, CTy->getTypeDerivedFrom()); 1332161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIArray Elements = CTy->getTypeArray(); 1333161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1334161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Get an anonymous type for index type. 13358cab6edf4fa46d9bd06ff3ce0e1dd4557be58b65Eric Christopher // FIXME: This type should be passed down from the front end 13368cab6edf4fa46d9bd06ff3ce0e1dd4557be58b65Eric Christopher // as different languages may have different sizes for indexes. 1337161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIE *IdxTy = getIndexTyDie(); 1338161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (!IdxTy) { 1339161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Construct an anonymous type for index type. 1340161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel IdxTy = new DIE(dwarf::DW_TAG_base_type); 13418cab6edf4fa46d9bd06ff3ce0e1dd4557be58b65Eric Christopher addString(IdxTy, dwarf::DW_AT_name, "int"); 1342161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(IdxTy, dwarf::DW_AT_byte_size, 0, sizeof(int32_t)); 1343161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(IdxTy, dwarf::DW_AT_encoding, dwarf::DW_FORM_data1, 1344161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel dwarf::DW_ATE_signed); 1345161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addDie(IdxTy); 1346161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel setIndexTyDie(IdxTy); 1347161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 1348161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1349161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Add subranges to array type. 1350161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel for (unsigned i = 0, N = Elements.getNumElements(); i < N; ++i) { 1351161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIDescriptor Element = Elements.getElement(i); 1352161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (Element.getTag() == dwarf::DW_TAG_subrange_type) 1353161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel constructSubrangeDIE(Buffer, DISubrange(Element), IdxTy); 1354161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } 1355161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 1356161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1357161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// constructEnumTypeDIE - Construct enum type DIE from DIEnumerator. 1358161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang PatelDIE *CompileUnit::constructEnumTypeDIE(DIEnumerator ETy) { 1359161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIE *Enumerator = new DIE(dwarf::DW_TAG_enumerator); 1360161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel StringRef Name = ETy.getName(); 1361390c40d96adb2eb4a778a0890c6c8743057e289eNick Lewycky addString(Enumerator, dwarf::DW_AT_name, Name); 1362161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel int64_t Value = ETy.getEnumValue(); 1363161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addSInt(Enumerator, dwarf::DW_AT_const_value, dwarf::DW_FORM_sdata, Value); 1364161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return Enumerator; 1365161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 1366161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1367dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel/// constructContainingTypeDIEs - Construct DIEs for types that contain 1368dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel/// vtables. 1369dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patelvoid CompileUnit::constructContainingTypeDIEs() { 1370dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel for (DenseMap<DIE *, const MDNode *>::iterator CI = ContainingTypeMap.begin(), 1371dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel CE = ContainingTypeMap.end(); CI != CE; ++CI) { 1372dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel DIE *SPDie = CI->first; 1373dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel const MDNode *N = CI->second; 1374dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel if (!N) continue; 1375dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel DIE *NDie = getDIE(N); 1376dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel if (!NDie) continue; 1377dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel addDIEEntry(SPDie, dwarf::DW_AT_containing_type, dwarf::DW_FORM_ref4, NDie); 1378dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel } 1379dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel} 1380dbc64af76d769596903485668a1dfc2d6640c4fbDevang Patel 1381d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel/// constructVariableDIE - Construct a DIE for the given DbgVariable. 1382d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang PatelDIE *CompileUnit::constructVariableDIE(DbgVariable *DV, bool isScopeAbstract) { 1383d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel StringRef Name = DV->getName(); 1384d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel 1385d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel // Translate tag to proper Dwarf tag. 1386d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel unsigned Tag = DV->getTag(); 1387d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel 1388d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel // Define variable debug information entry. 1389d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel DIE *VariableDie = new DIE(Tag); 1390d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel DbgVariable *AbsVar = DV->getAbstractVariable(); 1391d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel DIE *AbsDIE = AbsVar ? AbsVar->getDIE() : NULL; 1392d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel if (AbsDIE) 1393d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel addDIEEntry(VariableDie, dwarf::DW_AT_abstract_origin, 1394d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel dwarf::DW_FORM_ref4, AbsDIE); 1395d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel else { 1396390c40d96adb2eb4a778a0890c6c8743057e289eNick Lewycky addString(VariableDie, dwarf::DW_AT_name, Name); 1397d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel addSourceLine(VariableDie, DV->getVariable()); 1398d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel addType(VariableDie, DV->getType()); 1399d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel } 1400d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel 1401d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel if (DV->isArtificial()) 1402873cf0a0d7906083578d9b793008348750636138Eric Christopher addFlag(VariableDie, dwarf::DW_AT_artificial); 1403d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel 1404d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel if (isScopeAbstract) { 1405d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel DV->setDIE(VariableDie); 1406d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel return VariableDie; 1407d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel } 1408d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel 1409d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel // Add variable address. 1410d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel 1411d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel unsigned Offset = DV->getDotDebugLocOffset(); 1412d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel if (Offset != ~0U) { 1413d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel addLabel(VariableDie, dwarf::DW_AT_location, 1414d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel dwarf::DW_FORM_data4, 1415d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel Asm->GetTempSymbol("debug_loc", Offset)); 1416d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel DV->setDIE(VariableDie); 1417d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel return VariableDie; 1418d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel } 1419d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel 14208cf5e74a9cc7482901125b810f1e482d24e9404dEric Christopher // Check if variable is described by a DBG_VALUE instruction. 1421d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel if (const MachineInstr *DVInsn = DV->getMInsn()) { 1422d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel bool updated = false; 1423d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel if (DVInsn->getNumOperands() == 3) { 1424d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel if (DVInsn->getOperand(0).isReg()) { 1425d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel const MachineOperand RegOp = DVInsn->getOperand(0); 1426d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel const TargetRegisterInfo *TRI = Asm->TM.getRegisterInfo(); 1427d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel if (DVInsn->getOperand(1).isImm() && 1428d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel TRI->getFrameRegister(*Asm->MF) == RegOp.getReg()) { 1429d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel unsigned FrameReg = 0; 1430d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel const TargetFrameLowering *TFI = Asm->TM.getFrameLowering(); 14318b4310b8061d3d5ef26a4a313f53804a8ad02fc9Eric Christopher int Offset = 14328b4310b8061d3d5ef26a4a313f53804a8ad02fc9Eric Christopher TFI->getFrameIndexReference(*Asm->MF, 14338b4310b8061d3d5ef26a4a313f53804a8ad02fc9Eric Christopher DVInsn->getOperand(1).getImm(), 1434d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel FrameReg); 1435d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel MachineLocation Location(FrameReg, Offset); 1436d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel addVariableAddress(DV, VariableDie, Location); 14378b4310b8061d3d5ef26a4a313f53804a8ad02fc9Eric Christopher 1438d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel } else if (RegOp.getReg()) 14398b4310b8061d3d5ef26a4a313f53804a8ad02fc9Eric Christopher addVariableAddress(DV, VariableDie, 1440d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel MachineLocation(RegOp.getReg())); 1441d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel updated = true; 1442d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel } 1443d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel else if (DVInsn->getOperand(0).isImm()) 14448b4310b8061d3d5ef26a4a313f53804a8ad02fc9Eric Christopher updated = 1445d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel addConstantValue(VariableDie, DVInsn->getOperand(0), 1446d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel DV->getType()); 1447d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel else if (DVInsn->getOperand(0).isFPImm()) 1448d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel updated = 1449d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel addConstantFPValue(VariableDie, DVInsn->getOperand(0)); 1450d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel else if (DVInsn->getOperand(0).isCImm()) 1451d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel updated = 14528b4310b8061d3d5ef26a4a313f53804a8ad02fc9Eric Christopher addConstantValue(VariableDie, 1453d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel DVInsn->getOperand(0).getCImm(), 1454d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel DV->getType().isUnsignedDIType()); 1455d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel } else { 14568b4310b8061d3d5ef26a4a313f53804a8ad02fc9Eric Christopher addVariableAddress(DV, VariableDie, 1457d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel Asm->getDebugValueLocation(DVInsn)); 1458d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel updated = true; 1459d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel } 1460d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel if (!updated) { 1461d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel // If variableDie is not updated then DBG_VALUE instruction does not 1462d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel // have valid variable info. 1463d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel delete VariableDie; 1464d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel return NULL; 1465d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel } 1466d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel DV->setDIE(VariableDie); 1467d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel return VariableDie; 1468d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel } else { 1469d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel // .. else use frame index. 1470d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel int FI = DV->getFrameIndex(); 1471d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel if (FI != ~0) { 1472d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel unsigned FrameReg = 0; 1473d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel const TargetFrameLowering *TFI = Asm->TM.getFrameLowering(); 14748b4310b8061d3d5ef26a4a313f53804a8ad02fc9Eric Christopher int Offset = 1475d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel TFI->getFrameIndexReference(*Asm->MF, FI, FrameReg); 1476d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel MachineLocation Location(FrameReg, Offset); 1477d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel addVariableAddress(DV, VariableDie, Location); 1478d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel } 1479d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel } 1480d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel 1481d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel DV->setDIE(VariableDie); 1482d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel return VariableDie; 1483d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel} 1484d0b5a5ece4f6bf1a29bacefcdd07eaa7ba83e316Devang Patel 1485161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel/// createMemberDIE - Create new member DIE. 1486161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang PatelDIE *CompileUnit::createMemberDIE(DIDerivedType DT) { 1487161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIE *MemberDie = new DIE(DT.getTag()); 1488161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel StringRef Name = DT.getName(); 1489161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (!Name.empty()) 1490390c40d96adb2eb4a778a0890c6c8743057e289eNick Lewycky addString(MemberDie, dwarf::DW_AT_name, Name); 1491161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1492161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addType(MemberDie, DT.getTypeDerivedFrom()); 1493161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1494161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addSourceLine(MemberDie, DT); 1495161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1496161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIEBlock *MemLocationDie = new (DIEValueAllocator) DIEBlock(); 1497161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(MemLocationDie, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_plus_uconst); 1498161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1499161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel uint64_t Size = DT.getSizeInBits(); 1500161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel uint64_t FieldSize = DT.getOriginalTypeSize(); 1501161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1502161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (Size != FieldSize) { 1503161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Handle bitfield. 1504161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(MemberDie, dwarf::DW_AT_byte_size, 0, DT.getOriginalTypeSize()>>3); 1505161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(MemberDie, dwarf::DW_AT_bit_size, 0, DT.getSizeInBits()); 1506161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1507161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel uint64_t Offset = DT.getOffsetInBits(); 1508161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel uint64_t AlignMask = ~(DT.getAlignInBits() - 1); 1509161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel uint64_t HiMark = (Offset + FieldSize) & AlignMask; 1510161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel uint64_t FieldOffset = (HiMark - FieldSize); 1511161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Offset -= FieldOffset; 1512161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1513161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Maybe we need to work from the other end. 15143574eca1b02600bac4e625297f4ecf745f4c4f32Micah Villmow if (Asm->getDataLayout().isLittleEndian()) 1515161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel Offset = FieldSize - (Offset + Size); 1516161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(MemberDie, dwarf::DW_AT_bit_offset, 0, Offset); 1517161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1518161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Here WD_AT_data_member_location points to the anonymous 1519161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // field that includes this bit field. 1520161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(MemLocationDie, 0, dwarf::DW_FORM_udata, FieldOffset >> 3); 1521161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1522161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } else 1523161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // This is not a bitfield. 1524161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(MemLocationDie, 0, dwarf::DW_FORM_udata, DT.getOffsetInBits() >> 3); 1525161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1526161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (DT.getTag() == dwarf::DW_TAG_inheritance 1527161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel && DT.isVirtual()) { 1528161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1529161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // For C++, virtual base classes are not at fixed offset. Use following 1530161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // expression to extract appropriate offset from vtable. 1531161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // BaseAddr = ObAddr + *((*ObAddr) - Offset) 1532161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1533161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel DIEBlock *VBaseLocationDie = new (DIEValueAllocator) DIEBlock(); 1534161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(VBaseLocationDie, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_dup); 1535161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(VBaseLocationDie, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_deref); 1536161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(VBaseLocationDie, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_constu); 1537161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(VBaseLocationDie, 0, dwarf::DW_FORM_udata, DT.getOffsetInBits()); 1538161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(VBaseLocationDie, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_minus); 1539161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(VBaseLocationDie, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_deref); 1540161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addUInt(VBaseLocationDie, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_plus); 1541161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1542161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addBlock(MemberDie, dwarf::DW_AT_data_member_location, 0, 1543161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel VBaseLocationDie); 1544161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel } else 1545161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel addBlock(MemberDie, dwarf::DW_AT_data_member_location, 0, MemLocationDie); 1546161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel 1547161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (DT.isProtected()) 154813aaca5edf538f967c16b8bdbfe293e2f9d75fc1Nick Lewycky addUInt(MemberDie, dwarf::DW_AT_accessibility, dwarf::DW_FORM_data1, 1549161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel dwarf::DW_ACCESS_protected); 1550161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel else if (DT.isPrivate()) 155113aaca5edf538f967c16b8bdbfe293e2f9d75fc1Nick Lewycky addUInt(MemberDie, dwarf::DW_AT_accessibility, dwarf::DW_FORM_data1, 1552161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel dwarf::DW_ACCESS_private); 1553161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel // Otherwise C++ member and base classes are considered public. 15548b4310b8061d3d5ef26a4a313f53804a8ad02fc9Eric Christopher else 155513aaca5edf538f967c16b8bdbfe293e2f9d75fc1Nick Lewycky addUInt(MemberDie, dwarf::DW_AT_accessibility, dwarf::DW_FORM_data1, 1556161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel dwarf::DW_ACCESS_public); 1557161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel if (DT.isVirtual()) 1558798313d6c1f48634f0964d82c6b31364058a280fNick Lewycky addUInt(MemberDie, dwarf::DW_AT_virtuality, dwarf::DW_FORM_data1, 1559161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel dwarf::DW_VIRTUALITY_virtual); 1560e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel 1561e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel // Objective-C properties. 15626588abf377b7381274236e651462ec83052f6013Devang Patel if (MDNode *PNode = DT.getObjCProperty()) 15636588abf377b7381274236e651462ec83052f6013Devang Patel if (DIEEntry *PropertyDie = getDIEEntry(PNode)) 15648b4310b8061d3d5ef26a4a313f53804a8ad02fc9Eric Christopher MemberDie->addValue(dwarf::DW_AT_APPLE_property, dwarf::DW_FORM_ref4, 15656588abf377b7381274236e651462ec83052f6013Devang Patel PropertyDie); 15666588abf377b7381274236e651462ec83052f6013Devang Patel 156701bc2b39a4cbe76537e11411038bb834bceaf8a0David Blaikie if (DT.isArtificial()) 156801bc2b39a4cbe76537e11411038bb834bceaf8a0David Blaikie addFlag(MemberDie, dwarf::DW_AT_artificial); 156901bc2b39a4cbe76537e11411038bb834bceaf8a0David Blaikie 15709e11eb1ddb2988d0a751fdcfe433bc816c83f1f2Devang Patel // This is only for backward compatibility. 1571e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel StringRef PropertyName = DT.getObjCPropertyName(); 1572e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel if (!PropertyName.empty()) { 1573390c40d96adb2eb4a778a0890c6c8743057e289eNick Lewycky addString(MemberDie, dwarf::DW_AT_APPLE_property_name, PropertyName); 1574e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel StringRef GetterName = DT.getObjCPropertyGetterName(); 1575e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel if (!GetterName.empty()) 1576390c40d96adb2eb4a778a0890c6c8743057e289eNick Lewycky addString(MemberDie, dwarf::DW_AT_APPLE_property_getter, GetterName); 1577e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel StringRef SetterName = DT.getObjCPropertySetterName(); 1578e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel if (!SetterName.empty()) 1579390c40d96adb2eb4a778a0890c6c8743057e289eNick Lewycky addString(MemberDie, dwarf::DW_AT_APPLE_property_setter, SetterName); 1580e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel unsigned PropertyAttributes = 0; 1581e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel if (DT.isReadOnlyObjCProperty()) 1582e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_readonly; 1583e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel if (DT.isReadWriteObjCProperty()) 1584e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_readwrite; 1585e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel if (DT.isAssignObjCProperty()) 1586e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_assign; 1587e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel if (DT.isRetainObjCProperty()) 1588e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_retain; 1589e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel if (DT.isCopyObjCProperty()) 1590e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_copy; 1591e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel if (DT.isNonAtomicObjCProperty()) 1592e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_nonatomic; 1593e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel if (PropertyAttributes) 15948b4310b8061d3d5ef26a4a313f53804a8ad02fc9Eric Christopher addUInt(MemberDie, dwarf::DW_AT_APPLE_property_attribute, 0, 1595e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel PropertyAttributes); 1596e9db5e29e3af91eec572bfeb8dcec908213298b0Devang Patel } 1597161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel return MemberDie; 1598161b2f45c2413a9aa3bb3003d043f58c21dfd319Devang Patel} 1599